Microsoft fixes bug behind ‘Defender Antivirus is turned off’ alerts
Microsoft has resolved a known issue that causes incorrect alerts warning that Defender Antivirus was turned off after installing recent updates. [...]
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23 Million User Records Compromised in Gyazo Data Breach
Gyazo maker Helpfeel said the attacker exploited a vulnerability in its image upload server to gain unauthorized access. The post 23 Million User Records Compromised in Gyazo Data Breach appeared first on SecurityWeek.
An Abandoned CDN Domain Was Re-Registered. Thousands of Sites Still Call It.
In July 2025, someone registered a domain that used to belong to a content delivery network. The CDN had been wound down years earlier, and the domain it served assets from was allowed to expire. What it had not lost were its callers. Thousands of websites, code repositories, and documentation pages still carry hard-coded references to hostnames beneath i...
Plugin4Shell Lets Repository Owners Swap Pinned Plugin Code Across Four AI Coding Agents
A flaw in four widely used AI coding agents lets someone who controls a plugin's code repository swap the plugin an agent installs for a malicious one, even when the agent locked that plugin to a specific reviewed version, security firm Air Security said on Thursday. The firm said Anthropic has patched the flaw in Claude Code 2.1.179 and OpenAI in Codex 0...
Microsoft Patches 18 Vulnerabilities in AI, Cloud Products
Microsoft fixed vulnerabilities across Azure and AI-branded products, with privilege escalation flaws accounting for the majority. The post Microsoft Patches 18 Vulnerabilities in AI, Cloud Products appeared first on SecurityWeek.
WeaselBiscuit Stealer Spreads via 13 npm Packages to Harvest Chrome Extension Storage
Cybersecurity researchers have discovered a cluster of 13 npm packages that have been found to deliver a previously undocumented JavaScript stealer codenamed WeaselBiscuit. The new malware family, per OpenSourceMalware, exhibits functional overlaps with two malware strains associated with the Democratic People's Republic of Korea's (DPRK) Contagious Inter...
NightmareStresser DDoS Service Disrupted in International Operation
Active since at least 2022, NightmareStresser was one of the longest-running DDoS-for-hire services in the world. The post NightmareStresser DDoS Service Disrupted in International Operation appeared first on SecurityWeek.
Brevo Supply Chain Attack Injects Malware Into 100,000 Websites
Hackers used a compromised API key to deploy a Cloudflare worker that injected malicious scripts. The post Brevo Supply Chain Attack Injects Malware Into 100,000 Websites appeared first on SecurityWeek.
New Check Point flaw lets hackers execute code with root privileges
Check Point Software has released security updates to address a critical vulnerability that can let attackers execute code with root privileges on management systems. [...]
Claimed Bug Bounty Hunter Likely Used LLM to Build PhantomRaven npm Stealer
A financially motivated threat actor has been linked to the development and distribution of a JavaScript (JS)-based information stealer known as PhantomRaven via the npm package registry. "The developer likely wrote the malware using a large language model (LLM), an assessment made with high confidence based on verbose comments, placeholder code, and stat...
Critical Orkes Conductor Vulnerability Exploited in Attacks
CVE-2026-58138 is an unauthenticated remote code execution vulnerability that attackers can exploit via inline workflow definitions. The post Critical Orkes Conductor Vulnerability Exploited in Attacks appeared first on SecurityWeek.
Microsoft fixes broken copy and paste for Excel 2016 users
Microsoft has fixed a known issue that causes copy-and-paste failures for some Excel users after installing the September 2026 KB5002914 security update. [...]
MIND Secures $72 Million for AI-Powered DLP
The company will use the funding to accelerate platform development and expand its presence in key enterprise markets. The post MIND Secures $72 Million for AI-Powered DLP appeared first on SecurityWeek.
Check Point, Kaspersky, Tanium Patch Product Vulnerabilities
Check Point Security Management and Log Servers are affected by a critical vulnerability that can allow remote code execution with root privileges. The post Check Point, Kaspersky, Tanium Patch Product Vulnerabilities appeared first on SecurityWeek.
AI Agent Breaches Spanish Organization, Modifies Personal Data
AI-driven cyberattacks used to be exotic. Soon, it'll be odd if threat actors aren't using agents to do all of their bidding.
RatHat Android Malware Abuses ADB to Retain Shell Access After Uninstall
Cybersecurity researchers have flagged a new Android malware called RatHat that's assessed to be operated by China-based threat actors and features an artificial intelligence (AI)-powered system to navigate and control compromised devices. "Distributed primarily via targeted smishing (SMS/text phishing) and malvertising campaigns leading to deceptive thir...
New RatHat Android malware uses AI to automate device control
A new Android malware called RatHat has been discovered, targeting users with an AI-powered subsystem that helps operators remotely navigate compromised devices. [...]
CISA Ditches Weekly Vulnerability Roundups for Risk-Based Focus
The move is consistent with the agency's advice on the need for organizations to prioritize the vulnerabilities that actually matter.
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