Cybersecurity researchers have disclosed details of a sophisticated Python-based Windows malware framework called BraZetsu that fuels an underground marketplace commercializing access to compromised hosts. "Unlike the standard infostealer model, BraZetsu is a comprehensive master toolkit that empowers Initial Access Brokers (IABs) by turning compromised s...
Malware
Microsoft says a known issue that reverts mouse settings after installing the KB5120998 August 2026 preview update affects only non-English Windows 11 systems. [...]
New models, trained using NVIDIA Nemotron 3 Ultra, aim to catch rogue agent behavior before it executes, without the latency of large-model review. The post Capsule Security Launches ‘AI Circuit Breaker’ to Stop Rogue Agents appeared first on SecurityWeek.
ChatGPT and Codex are experiencing a major outage, with users reporting errors across nearly every major ChatGPT feature. [...]
Claude is experiencing an outage, with users encountering elevated errors when sending requests to multiple Anthropic AI models. [...]
A recently patched critical vulnerability (CVE-2026-32475) in the Elementor Pro plugin for WordPress is being exploited in attacks that deliver a webshell payload and execute arbitrary commands on the server. [...]
Thomson Reuters disclosed on Wednesday that an unauthorized party obtained files from C-Track, the court case management platform sold by its West Publishing Corporation unit, in March 2026, affecting courts in 11 U.S. states, the U.S. Virgin Islands, and Ontario, Canada. West Publishing said it discovered the activity on June 30, 2026. A subset of court ...
The incident demonstrates how frontier AI agents can dramatically compress an attack timeline and coordinate a large-scale breach, according to researchers.
Infostealers can expose far more than passwords, including authenticated sessions that may let attackers bypass MFA. Flare explains how defenders can prioritize compromised identities, determine whether stolen access is still usable, and respond before it leads to account takeover. [...]
Malware
The Austin-based company will invest in agentic runtime security capabilities to secure AI coding agents. The post HiddenLayer Raises $100 Million for AI Runtime Security appeared first on SecurityWeek.
Microsoft has confirmed that desktop settings are lost or reset on some Windows devices after installing the KB5120998 August 2026 preview update. [...]
The startup’s firewall evaluates AI skills, plugins and MCP servers for malicious instructions, excessive permissions and software supply chain risks. The post AI Agent Firewall Startup AIR Security Emerges From Stealth With $50 Million appeared first on SecurityWeek.
Supply chain
Brazil's most sophisticated threat group is making light work of the country's financial systems, putting money directly into its own pocket.
An RMM phishing campaign initially associated with Canadian targeting due to its use of Canada Revenue Agency (CRA) tax forms as lures has turned out to be part of a broader campaign spanning 46 countries. Around 45% of observed activity was associated with the United States, making it the campaign's top geographic target. ANY.RUN research connected 601 c...
Plex urged users this week to update their desktop clients and media servers immediately to patch multiple security vulnerabilities. [...]
Cybercriminals are offering digital scans of US and Canadian driver’s licenses, likely stolen from IDScan.net. The post 153 Million Driver License Images Offered on Dark Web appeared first on SecurityWeek.
Threat actors are leveraging the trusted Node.js JavaScript runtime in multiple cyber attacks as a way to deploy malicious payloads. According to a new report published by the Symantec Threat Hunter Team today, the attack method has been put to use in attacks targeting government departments, technology companies, and hotels since February 2026. "The tech...
Malware
The high-severity SQL injection flaw (CVE-2026-19949) could allow unauthenticated attackers to achieve remote code execution. The post Over 3 Million WordPress Sites Affected by Migration Plugin Vulnerability appeared first on SecurityWeek.