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From Portuguese sources

Translated from Portuguese

Aug 6

OpenAI Disables Coordinated ChatGPT Network Used for Financial Scams and Identity Forgery

OpenAI has deactivated a coordinated network of ChatGPT accounts that supported financial fraud, romance scams, and identity forgery operations. Criminals leveraged the AI to generate fake personas, translate conversations, and craft targeted messages aimed at victims across multiple schemes. The investigation originated from reports of suspicious activity observed on WhatsApp. Scammers used the tool to produce forged documents including stock confirmations, legal notices, passports, and fake financial interfaces to increase credibility. Operations typically began on social media or messaging apps, building emotional trust or urgency before requesting deposits, activation fees, or nonexistent fines. Indicators of possible human trafficking and forced labor were also uncovered through job advertisements and internal discussions about worker control in Poipet. OpenAI has blocked the accounts and shared operational indicators with law enforcement and technology companies.

BoletimSecFraud & Social Engineering
Aug 6

Critical Django Vulnerability CVE-2026-15307 Enables Remote Code Execution via GDALRaster Spatial Queries

The Django project has released versions 6.0.8 and 5.2.17 to address four vulnerabilities that could result in arbitrary file writes, unauthorized requests, denial of service, and cross-site scripting attacks. The most severe issue, tracked as CVE-2026-15307, impacts spatial queries that process raster data through the GDALRaster interface. Attackers can supply specially crafted values that cause the Django process to write files or initiate external connections under its own permissions, potentially leading to remote code execution in certain configurations. Exploitation is also possible through the Django admin panel when a staff user has view permissions on models containing geographic fields. The patches have been backported to the 5.2 and 6.0 branches as well as the upcoming 6.1 release candidate. In addition to fixing the flaw, the updates alter query behavior to reject dictionaries and strings that do not represent valid geometries.

BoletimSecVulnerabilities & Exploits
Aug 5

Microsoft Copilot Abused to Accelerate Corporate Account Takeovers and Bank Transfer Frauds

Cybercriminals can leverage Microsoft Copilot to speed up the compromise of corporate accounts and execute financial frauds. In a controlled simulation, researchers demonstrated how the AI assistant helped redirect a $247,500 bank transfer after gaining access to an employee's email. The attack begins with the creation of inbox rules that automatically delete suspicious login alerts, followed by rapid analysis of internal communications to identify high-value targets. Copilot was then used to replicate the victim's writing style and craft a convincing phishing email capable of stealing session tokens and bypassing multi-factor authentication. Once the executive account was taken over, the tool quickly located pending payments and generated a fraudulent request to alter the recipient bank details. The scenario highlights risks from legitimate AI features rather than any specific vulnerability in Copilot itself.

BoletimSecAI Security
Aug 5

DarkSword Exploit Kit Expands to 180 Sites Targeting iPhone Users with Zero-Click Chain

The DarkSword exploit kit has scaled its infrastructure to 180 web properties hosted on 27 servers, enabling zero-click compromise of iPhones running vulnerable iOS versions. Attackers deploy fake pages impersonating Apple, AWS, and other popular services to trigger a six-vulnerability exploit chain that achieves remote code execution, sandbox escape, and privilege escalation on iOS 18.4 through 18.7. Once the device is compromised, GHOSTBLADE components extract data from the Keychain, iCloud files, Wi-Fi passwords, and other stored content before exfiltrating it to attacker-controlled panels. The malware deletes crash reports and forensic logs to hinder analysis and does not establish traditional persistence, limiting the window of data theft to a single visit. Infrastructure rotates rapidly, with five of seven administrative panels observed on July 30, 2026, having appeared only a week earlier, indicating frequent domain and host replacement to evade blocking.

BoletimSecMalware & Botnets
Aug 4

Web Application Vulnerabilities Surge as Rapid Development Outpaces Security Reviews

The number of vulnerabilities in web applications continues to rise each quarter with no signs of slowing. Frequent releases, lean teams, and pressure for speed are pushing systems into production with flaws that should have been caught earlier. Vibe Coding is accelerating the problem by enabling anyone to launch applications in days and push dozens of updates daily without integrating cybersecurity into the process. Most new software reaches production without any security review, and attackers are already exploiting the common weaknesses these applications share. Companies face data leaks, service disruptions, and customer exposure from issues that a single test could have identified. The recommended response is AI-driven pentesting that simulates real attacker behavior instead of relying on known patterns. Launching web applications without security testing is becoming an increasingly expensive decision as incident costs far exceed preventive measures.

BoletimSecVulnerabilities & Exploits
Aug 4

Critical Stack Buffer Overflow in TP-Link TL-WR940N Enables Remote Code Execution

A high-severity vulnerability tracked as CVE-2026-12935 with a CVSS score of 8.7 affects the TP-Link TL-WR940N router on hardware version V6. The flaw resides in the RTSP connection tracking module responsible for managing audio and video streaming sessions over the network. It is caused by a stack-based buffer overflow that allows oversized data to corrupt kernel memory, potentially leading to device crashes or full remote code execution. No administrative credentials are required for exploitation, though the attack depends on an RTSP connection initiated by a device already present on the local network. Successful compromise grants attackers the ability to alter router settings, modify DNS servers, intercept traffic, redirect users to malicious sites, and pivot to other connected devices. Users are advised to verify the hardware revision on the device label and apply the region-specific firmware update released by TP-Link.

BoletimSecVulnerabilities & Exploits
Aug 4

Octagon Android RAT Poses as Bahrain Emergency Alert App to Steal Credentials and Establish Persistent Surveillance

A remote access trojan named Octagon targets Android devices by masquerading as the official emergency alerts application from Bahrain. The infection begins when victims download the BH-Alert.apk file from phishing websites. The malware guides users through seven steps to grant dangerous permissions while using encrypted code hidden inside a font file extension to evade static analysis. It installs a secondary component called OctagonPanel and deploys mutual-monitoring surveillance services that restart each other if terminated. Additional persistence is achieved through boot receivers, a fake Android account, and scheduled synchronization tasks every 30 minutes. The trojan abuses the Accessibility Service to record unlock patterns, PINs, and passwords while also harvesting SMS messages, contacts, call logs, and screenshots. A criminal-controlled VPN allows interception and redirection of victim traffic.

BoletimSecMalware & Botnets
Aug 3

SplitVPN Data Breach Exposes Personal Information of 865,000 Users

A data breach at the Russian VPN provider SplitVPN, formerly known as NotVPN, has exposed the personal details of approximately 865,000 users. The incident, which occurred in July 2026, involved a 17 GB SQL database containing emails, IP addresses, geolocation data, and partial payment card information. The stolen material was later distributed on a cybercrime forum, revealing 23.4 million user records, 13.6 million devices, and 2.6 million payment entries. Nearly 58 million connection logs spanning June 2025 to 21 July 2026 were also included, contradicting the company’s previous no-logs policy. The exposure is particularly concerning for users relying on the service to evade censorship and surveillance.

BoletimSecData Breaches & Leaks
Aug 3

Supply Chain Attack Targets Arch Linux Community Repository

Arch Linux has temporarily suspended package adoptions in the Arch User Repository after detecting accounts taking over abandoned projects to insert malicious code. The platform later expanded the restriction by blocking all new submissions to the AUR to contain ongoing supply chain attacks. Attackers were adopting packages without active maintainers and introducing harmful changes through subsequent commits that could bypass user scrutiny due to established project history. Newly created packages containing malicious build commands, including requests for elevated privileges, were also discovered. Affected accounts have been banned and identified projects removed from the repository. The incident does not impact official Arch Linux repositories, with risk limited to community-maintained AUR packages that require manual review of PKGBUILD files before installation or updates.

BoletimSecSupply Chain & Open Source
Jul 31

Critical CosmosEscape Flaw Breaks Customer Isolation in Azure Cosmos DB

A critical vulnerability named CosmosEscape allowed attackers to escape the restricted Gremlin API environment and execute arbitrary code on the DB Gateway component of Azure Cosmos DB. The flaw exploited weaknesses in .NET reflection protections, enabling file read/write operations and command execution that ultimately yielded the Cosmos Master Key. With this global signing key, an attacker could retrieve the primary key for any customer account and gain full read/write access. The exploit also exposed the Config Store containing account names, subscription identifiers, tenant details, and network rules. Even network-isolated and private instances remained vulnerable because the DB Gateway itself enforced those restrictions. Internal Microsoft services including Entra ID, Teams, and Copilot rely on Cosmos DB, amplifying the potential impact of the issue.

BoletimSecVulnerabilities & Exploits
Jul 31

Cordial Spider Deploys Work Panel Platform for Tech Support Scams Against Corporate Identities

A criminal platform called Work Panel is turning fake technical support calls into structured operations aimed at taking over corporate accounts. The service combines target research, page cloning, telephony, and credential capture within a single control panel. It is linked to the group tracked as O-UNC-045, also known as Cordial Spider. Campaigns target users of multiple identity providers and combine telephone social engineering with fake authentication pages. Operators research names, job titles, corporate emails, phone numbers, and professional profiles before calling to impersonate help-desk staff. While one operator keeps the victim on the line, a manager monitors the phishing session in real time. Captured credentials are sent only to operation managers via Telegram, reducing internal theft risks among the criminals themselves.

BoletimSecFraud & Social Engineering
Jul 30

AI-Powered Pentests Deliver Full Attack Chains Unlike Basic Vulnerability Scans

A new generation of AI-driven offensive testing tools is emerging that goes far beyond traditional vulnerability scanners. These AI agents perform reconnaissance, enumeration, business logic analysis, exploitation, and validation in a continuous adaptive loop. The result is not a long list of unconfirmed findings but validated vulnerabilities accompanied by technical descriptions, business impact, risk ratings, and working proof-of-concept evidence. True AI pentesting requires specialized agent architectures, memory, planning modules, and proprietary offensive tooling rather than generic prompts connected to existing scanners. In Brazil, HackerSec has built such a system with its Yaga agent, while XBOW and Aikido Security are recognized internationally. The technology is positioned to complement and eventually transform manual penetration testing practices.

BoletimSecAI Security
Jul 30

Broadcom Patches Five Critical VMware Vulnerabilities Including CVSS 9.8 Authentication Bypass

Broadcom has released fixes for five vulnerabilities across multiple VMware products that could enable authentication bypass, remote code execution, and virtual machine escapes. The most severe issue, CVE-2026-59309 with a CVSS score of 9.8, resides in the VMware Directory Service component of vCenter and allows an attacker with network access to bypass authentication entirely. Successful compromise of vCenter grants control over hosts, virtual machines, networks, and storage, posing severe risks to enterprise environments. A second critical flaw, CVE-2026-47876, affects the VMXNET3 virtual adapter in ESX and permits an attacker with administrative privileges inside a guest VM to perform an out-of-bounds write and execute code on the hypervisor host. Additional patches address an unauthorized memory read in ESX, Workstation, and Fusion, along with insufficient logging that could conceal administrative actions. No workarounds exist, and administrators must apply the specified updates to vCenter, ESX, Cloud Foundation, Workstation, and Fusion.

BoletimSecVulnerabilities & Exploits
Jul 30

Firefox JIT Vulnerability Exposes Tor Browser Users to Remote Code Execution

A high-severity flaw in Firefox's SpiderMonkey JavaScript engine allows remote code execution simply by visiting a malicious page, directly impacting Tor Browser users on unpatched versions. Registered as CVE-2026-10702, the vulnerability stems from incorrect memory handling in the JIT compiler that leaves a dangling reference to freed memory, enabling arbitrary read and write primitives. Researchers demonstrated successful exploitation that can compromise the browser's content rendering process and facilitate user deanonymization or OS-level attacks. The same issue served as the initial stage in the IonStack exploit chain against ARM64 Android devices, where it was chained with CVE-2026-43499 in the Linux kernel to achieve root privileges. Mozilla addressed the issue in Firefox 151.0.3, and the Tor Project rolled out corresponding fixes in Tor Browser 15.0.19, which also incorporates the latest Firefox ESR updates.

BoletimSecVulnerabilities & Exploits
Jul 29

Tengu Botnet Modernizes Mirai with 25 DDoS Methods and Advanced Persistence on IoT and Embedded Linux

A new botnet named Tengu has emerged, targeting Internet of Things devices and embedded Linux systems to conduct denial-of-service attacks, redirect traffic, and maintain persistent access. The malware represents an updated evolution of the Mirai botnet and begins its infection chain through brute-force attacks against exposed Telnet services. Once valid credentials are obtained, it downloads an architecture-specific payload and establishes partially encrypted communication with its command-and-control server. Operators can issue commands to collect system and network information, update the implant, and convert compromised devices into SOCKS5 proxies. The botnet includes 25 distinct DDoS attack methods covering UDP, TCP, and ICMP floods while also targeting services such as HTTP, DNS, NTP, SSH, SMTP, FTP, SIP, Minecraft, and servers running Source Engine or Quake protocols. Its key differentiators lie in robust persistence and self-protection mechanisms, including a secondary watchdog process that restarts the malware every 60 seconds if terminated, fake systemd services, manipulated device watchdogs, and the ability to remove competing malware.

BoletimSecMalware & Botnets
Jul 29

Cybercriminals Hide Malware in Fake Claude Code Installation Command Targeting macOS Developers

Cybercriminals are distributing the MacSync infostealer by embedding malicious commands in fake installation tutorials for Claude Code. The campaign relies on sponsored search ads and counterfeit documentation pages that appear when developers look up official setup instructions. Victims are instructed to paste an obfuscated command into the macOS Terminal that uses Base64 encoding to conceal the download server and disables certificate validation. Once executed, the command retrieves MacSync, which steals passwords, session cookies, SSH keys, cloud credentials, and developer configuration files. Stolen tokens can bypass multi-factor authentication and grant attackers direct access to accounts and repositories. Security experts advise installing Claude Code exclusively through official channels and immediately isolating any compromised Mac while revoking all sessions and rotating credentials from a trusted device.

BoletimSecMalware & Botnets
Jul 28

Iranian Hackers Disable Safety Alarms in US Industrial Control Systems

Iranian threat actors have been compromising internet-exposed industrial controllers across the United States since at least March 2026, modifying alarm and safety shutdown logic in critical infrastructure. The campaign has targeted government organizations and operators in the water, wastewater, and energy sectors, resulting in operational disruptions and financial losses. Attackers focus on devices with insecure remote access, weak credentials, or default configurations rather than exploiting zero-day vulnerabilities. Targeted hardware includes Rockwell CompactLogix and Micro850 controllers, Schneider BMX P34 and Modicon M340 PLCs, and Siemens S7-1200 models. Operators use rented foreign infrastructure and legitimate programming software to download, alter, and re-upload control logic projects. In at least one case, malicious code maintained normal operations while introducing instructions that bypassed safe operational limits and altered data displayed on HMI and SCADA interfaces. The tactics closely resemble prior activity attributed to the CyberAv3ngers group linked to Iran’s Islamic Revolutionary Guard Corps, though direct attribution remains unconfirmed.

BoletimSecState-Sponsored & APT
Jul 28

AgentForger Vulnerability in ChatGPT Workspace Agents Enabled Malicious AI Deployment via Single Phishing Link

A vulnerability in ChatGPT Workspace Agents allowed attackers to create and deploy a malicious AI agent inside an organization from a single phishing link. Named AgentForger, the flaw was fixed by OpenAI on June 8, 2026. The attack exploited a permissive parameter in the Agent Builder that accepted instructions directly through the URL. An authenticated user opening the prepared link would trigger automatic execution of the command without additional confirmation. The victim required access to Workspace Agents and at least one pre-authorized enterprise connector such as Outlook, Gmail, Google Drive, Slack, Teams, or Google Calendar. The malicious prompt instructed the platform to create an agent, connect available applications, disable approval requests, publish the component, and schedule it for recurring operation. In the demonstration, the agent monitored emails from the attacker with subjects starting with “TASK” and executed the contained instructions while returning results to the attacker-controlled address.

BoletimSecAI Security
Jul 27

Cl0p Exploits Critical Windchill Vulnerability CVE-2026-12569 to Steal Industrial Designs

The Cl0p extortion group is actively targeting internet-exposed PTC Windchill and FlexPLM servers to exfiltrate engineering projects, technical specifications, and other sensitive data. The campaign focuses on organizations in the industrial, automotive, aerospace, defense, and retail sectors. Attackers leverage the critical remote code execution vulnerability CVE-2026-12569, which stems from unsafe deserialization and carries a CVSS score of 9.8, allowing unauthenticated exploitation over the network. The intrusion chain also combines a WSDL endpoint information disclosure in FlexPLM with a login mechanism weakness in Windchill to gain initial access and execute commands without valid credentials. After compromise, operators deploy JSP web shells to maintain persistence, explore files, and prepare data for exfiltration. Affected systems often contain unreleased product designs, engineering drawings, and strategic manufacturing documents. The activity began in early June 2026, with extortion emails sent to hundreds of employees starting July 20 to increase internal pressure ahead of potential data leaks.

BoletimSecRansomware & Extortion
Jul 27

Critical Vulnerabilities in JetBrains IntelliJ IDEA and TeamCity Enable Remote Code Execution

JetBrains has addressed multiple critical vulnerabilities in its IntelliJ IDEA and TeamCity products that could allow remote code execution, unauthorized file access, and sandbox escapes. The flaws affect remote development environments and require immediate patching, especially in shared setups. In IntelliJ IDEA, CVE-2026-59792 involves directory traversal during workspace identifier processing and carries a CVSS score of up to 9.8. TeamCity received fixes for several issues, including malicious Git repository configurations that enable code execution and a Kotlin DSL sandbox escape. Additional patches cover arbitrary file access through Perforce integration and a persistent cross-site scripting flaw on cloud profile pages. Administrators are urged to update IntelliJ IDEA to versions 2026.1.4 or 2026.2 and TeamCity to 2026.1.2 or 2025.11.6 depending on the release line in use.

BoletimSecVulnerabilities & Exploits
Jul 24

Chaos Ransomware Group Uses msaRAT Trojan to Hide C2 Traffic Through Invisible Chrome and Edge Browsers

The Chaos ransomware group has adopted a new Rust-based trojan called msaRAT to conceal its command-and-control communications inside legitimate browser sessions. The malware launches Chrome or Edge in invisible mode and controls it via the Chrome DevTools Protocol, keeping all outbound traffic restricted to localhost. It then injects JavaScript to negotiate a WebRTC connection through Cloudflare Workers before routing data over Twilio TURN servers, preventing the attackers' real infrastructure from appearing in network logs. Commands are executed through cmd.exe, and the implant includes queuing mechanisms that support reliable transfer of files, screenshots, and larger data volumes. In the analyzed incident, operators delivered the malware via an MSI installer disguised as a Windows update that loaded the msaRAT DLL directly into memory. The technique does not exploit any vulnerabilities in Chrome or Edge and is designed to blend malicious traffic with normal corporate browser activity.

BoletimSecRansomware & Extortion
Jul 24

Check Point Issues Urgent Fixes for Critical Exploited SmartConsole Vulnerability CVE-2026-16232

Check Point has released emergency patches for a critical vulnerability in the SmartConsole login process that is already being actively exploited in real-world attacks. The flaw, tracked as CVE-2026-16232 with a CVSS score of 9.3, allows unauthenticated remote attackers to obtain valid access tokens and gain full administrative privileges over the management environment. Exploitation requires the management server to be directly exposed to the internet without IP address restrictions for trusted clients. The company has confirmed attacks against a small number of customers and notified those affected. The update also addresses two additional vulnerabilities, CVE-2026-62144 and CVE-2026-62145, and is delivered through the Jumbo Hotfix package released on July 22, 2026.

BoletimSecVulnerabilities & Exploits
Jul 23

HackerSec Launches AI-Native Pentest Platform with Yaga Agent for Automated Offensive Testing

HackerSec has released a major update to its pentest platform introducing an AI-Native model where the Yaga agent handles full execution of offensive tests including reconnaissance, enumeration, exploitation, impact confirmation, and evidence production. Human experts only monitor operations and validate vulnerabilities while the AI maintains context, adapts strategies, and explores multiple attack paths until confirming exploitability. The platform addresses the growing use of AI by cybercriminals for scaled attacks and the expanding attack surface from rapid AI-driven development in enterprises. At its core, Yaga uses a proprietary harness coordinating multiple tools, playbooks, analysis stages, and AI models instead of relying on a single model. Benchmark results from YagaBench show the production configuration solving 91.2% of black box, 94.6% of gray box, and 93.5% of white box scenarios. CEO Andrew Martinez stated the goal of reaching over 98% effectiveness in all AI-Native pentests by year end. The approach enables more frequent testing with broader coverage and reduced time to identify vulnerabilities.

BoletimSecAI Security
Jul 23

ASUS Releases Security Updates to Fix Critical CVE-2026-13385 Router Vulnerability with CVSS Score 9.5

ASUS has issued security updates to address a critical vulnerability identified as CVE-2026-13385 that affects multiple router firmware versions and could allow remote command execution. The flaw impacts devices running firmware versions 3.0.0.4_386, 3.0.0.4_388, and 3.0.0.6_102 across various home and small business router lines. It stems from inadequate validation of digital certificates and file integrity mechanisms, preventing proper authentication of servers or received content. Exploitation requires a man-in-the-middle attack condition on compromised networks or manipulated connections but does not need administrative credentials or user interaction. Users are advised to install the latest firmware for their specific models, disable unnecessary administrative features, and review any unauthorized configuration changes. The advisory emphasizes the high severity of the issue given its 9.5 CVSS score and broad device coverage.

BoletimSecVulnerabilities & Exploits
Jul 23

Vulnerability in Adobe Acrobat Chrome Extension Allowed Theft of WhatsApp Web Conversations

A flaw in the Adobe Acrobat extension for Chrome enabled malicious websites to steal active WhatsApp Web conversations, contacts, and profile information without requiring any user interaction beyond visiting a prepared URL. The vulnerability, tracked as CVE-2026-48294 and named HermeticReader, carried a CVSS score of 7.4 and affected approximately 329 million installations across all versions up to 26.5.2.2. Attackers exploited internal extension pages and missing origin validation to modify local storage, activate the Hermes integration mechanism, and extract rendered chat content by predicting tab identifiers and sending commands to the Acrobat component. The stolen data included contact names, conversation lists, message previews, profile details, and the full text of open chats, all transmitted to attacker servers via hidden forms while leaving end-to-end encryption intact. Adobe addressed the issue in version 26.5.2.3, which was automatically pushed through the Chrome Web Store. No evidence of in-the-wild exploitation had surfaced prior to public disclosure.

BoletimSecVulnerabilities & Exploits
Jul 22

Cybercriminals Exploit Critical SharePoint Vulnerability CVE-2025-53770 for Remote Code Execution

A critical unauthenticated remote code execution flaw in Microsoft SharePoint Server, tracked as CVE-2025-53770 with a CVSS score of 9.8, is being actively exploited in the wild. The vulnerability stems from unsafe deserialization of data sent to on-premises servers and forms part of the ToolShell attack chain alongside CVE-2025-49704 and CVE-2025-49706. Attackers can execute arbitrary commands, install web shells, and steal ASP.NET cryptographic keys to forge authentication tokens and maintain persistence even after patching. The flaw affects SharePoint Server 2016, SharePoint Server 2019, and SharePoint Server Subscription Edition, while SharePoint Online in Microsoft 365 remains unaffected. Two related variants, CVE-2025-53770 and CVE-2025-53771, were developed to bypass earlier mitigations. Administrators are urged to apply all available patches immediately, restrict internet exposure of SharePoint, and hunt for suspicious files, processes, and scheduled tasks.

BoletimSecVulnerabilities & Exploits
Jul 22

Qilin Ransomware Operators Exploit Palo Alto PAN-OS VPN Flaw CVE-2026-0257

Operators linked to the Qilin ransomware group have been actively exploiting an authentication bypass vulnerability in Palo Alto Networks PAN-OS to gain initial access to corporate networks. The attacks, observed in June 2026, targeted the GlobalProtect VPN service running on Palo Alto firewalls and were tracked under CVE-2026-0257. Attackers used specially crafted authentication cookies to establish unauthorized VPN sessions, after which they harvested credentials from Windows LSASS processes and Active Directory NTDS databases. Lateral movement relied heavily on PsExec and administrative shares, supplemented by tools such as AnyDesk, Ngrok, LogMeIn, and NetExec. Before deploying the ransomware binary stored as win.exe in C:\PerfLogs\, the threat actors disabled Microsoft Defender real-time protection and cleared event logs. The vulnerability affects PAN-OS versions 10.2, 11.1, 11.2, and 12.1 as well as certain Prisma Access editions, while Panorama and Cloud NGFW remain unaffected.

BoletimSecRansomware & Extortion
Jul 21

EU Forces Google to Open Android Microphone, Camera and Screen Access for Rival AI Assistants

The European Union has ordered Google to provide competing AI assistants with the same level of access to sensitive Android resources that is currently reserved for Gemini. The ruling covers eleven system functions, including voice activation, home button integration, background execution, and on-device AI model access. Rival assistants will also gain real-time environmental data streams from the microphone, camera, screen, and speakers under identical consent and notification rules applied to Google services. Additional capabilities include cross-app interaction, messaging, scheduling, device settings control, and multi-step task automation. Screen automation will allow assistants to operate apps inside a virtual window while the user performs other activities. Most changes are scheduled for Android 18 by 1 August 2027, while simultaneous activation of multiple assistants by voice keyword will arrive in Android 19 no later than 1 August 2028. Access to the most sensitive functions may require objective security certification and explicit user authorization.

BoletimSecPolicy & Regulation
Jul 21

HollowGraph Malware Abuses Microsoft 365 Calendars to Conceal Stolen Files and C2 Traffic

A newly discovered espionage malware called HollowGraph turns compromised Microsoft 365 calendars into hidden channels for receiving commands and exfiltrating stolen data. The implant schedules events for 13 May 2050, a distant future date chosen to reduce the likelihood of discovery by account owners. Developed as a Windows DLL, HollowGraph leverages the Microsoft Graph API to blend its traffic with legitimate corporate service activity, eliminating the need to contact attacker-controlled servers directly. It supports two primary commands: “get” to retrieve instructions attached to operator-created appointments and “send” to encrypt collected data with RSA and AES-256-GCM before uploading it as calendar attachments. Separate encryption keys are used for inbound commands and outbound data, while stolen files are written to a disguised logAzure.txt file. Researchers have identified at least 12 compromised systems, three of which remained active, with operations observed between 3 June and 9 July 2026 and primarily targeting Israeli entities.

BoletimSecMalware & Botnets
Jul 20

Ransomware Attack Hits Coca-Cola Subsidiary Fairlife, Temporarily Halting US Production Systems

Fairlife, a company owned by Coca-Cola, temporarily suspended production operations in the United States after detecting unauthorized access to parts of its systems in a ransomware incident. The breach, publicly disclosed by Coca-Cola on July 16, 2026, affected environments directly linked to industrial production, prompting an immediate shutdown while investigations and recovery efforts continue. Fairlife manufactures milk, protein beverages, and other dairy products sold across the North American market, making the incident potentially disruptive to product availability, logistics, and internal processes. The company activated its incident response and business continuity protocols and engaged external cybersecurity specialists and consultants to assist with containment, investigation, and system restoration. No information has yet been released regarding data exfiltration, file encryption, or ransom demands, and the full scope of the attack remains under assessment. Coca-Cola has notified law enforcement authorities about the incident, while operations at Fairlife facilities in Canada were confirmed to be unaffected.

BoletimSecRansomware & Extortion
Jul 20

OpenSSL Patches HollowByte Vulnerability That Enables Denial-of-Service Attacks on TLS Connections with Just 11 Bytes

OpenSSL has released fixes for a vulnerability dubbed HollowByte that allows denial-of-service attacks against servers using unpatched versions of the library. The flaw can be triggered by a malicious TLS request as small as 11 bytes and was addressed without a CVE or formal security advisory because it was classified as a hardening improvement. Researchers from Okta warn that the operational impact can be significant on internet-facing servers, as the issue occurs during the initial TLS handshake when vulnerable OpenSSL versions reserve memory based on the client-declared size before verifying actual data delivery. Attackers can open connections, claim they will send a large message, and then deliver only a tiny portion, leaving the server waiting indefinitely with reserved memory. In tests with NGINX, low-memory servers could be completely taken down while more powerful machines suffered substantial capacity loss without triggering abnormal traffic volumes. The patches are included in OpenSSL versions 4.0.1, 3.6.3, 3.5.7, 3.4.6, and 3.0.21, and administrators are advised to update packages, restart affected services, and monitor for unusual memory growth.

BoletimSecVulnerabilities & Exploits
Jul 18

Zero-Day Vulnerability CVE-2026-15682 in AnyDesk Enables Denial-of-Service Attacks on Affected Systems

A newly disclosed zero-day vulnerability in AnyDesk, tracked as CVE-2026-15682, allows attackers to trigger denial-of-service conditions on systems running the popular remote access tool. The flaw centers on a support information transmission feature that can be abused through Windows file system redirection mechanisms. An attacker with limited local access can manipulate these redirections to crash either the AnyDesk application or the underlying operating system. Because AnyDesk is widely deployed by support teams, managed service providers, and internal IT departments, the vulnerability poses a significant risk to remote assistance workflows and incident response operations. Until an official patch is released, organizations are advised to restrict code execution privileges, monitor for anomalous file system redirection activity, and apply updates as soon as they become available.

BoletimSecVulnerabilities & Exploits
Jul 18

Cybercriminals Actively Exploiting Critical Zero-Day Vulnerabilities in SonicWall SMA1000 Appliances

Cybercriminals are actively exploiting a critical zero-day vulnerability in SonicWall SMA1000 appliances used for corporate remote access. The attack chain combines two flaws that together enable unauthenticated access to internal services and local privilege escalation, ultimately allowing remote code execution with maximum privileges on affected devices. The most severe issue, CVE-2026-15409, carries a maximum CVSS score of 10.0 and permits attackers to reach internal appliance services without authentication, while CVE-2026-15410 facilitates local privilege escalation. Impacted models include the SMA1000 Series 6210, 7210, and 8200v running firmware versions 12.4.3-03434 and 12.5.0-02800. SonicWall has confirmed that its SSL VPN firewalls and the SMA 100 product line remain unaffected. Compromised appliances have already been observed serving as stealthy entry points into corporate networks, where attackers harvested credentials, session data, and multi-factor authentication seeds before pivoting into Active Directory environments. Administrators are urged to apply the emergency patches that upgrade devices to firmware versions 12.4.3-03453, 12.5.0-02835, or later.

BoletimSecVulnerabilities & Exploits