Security teams must treat autonomous agents as highly privileged identities. The post What the Hugging Face Incident Teaches Security Leaders About AI Agent Access appeared first on SecurityWeek.
The threat actor known as Silver Fox has been observed distributing the ValleyRAT backdoor disguised as a signed Chinese adware application, running the malware under a trusted process to slip past users who add such software to their antivirus exclusions. Russian cybersecurity vendor Kaspersky said the attackers built the disguise around QN Wallpaper, a ...
MalwareThreat actor
The AI giant is logging customers out of their accounts and removing payment data to prevent unauthorized Claude usage. The post Anthropic Warns Claude Users of Infostealer Malware Infections appeared first on SecurityWeek.
Malware
Threat actors associated with Aurora (aka Aur0ra) ransomware have been observed using SpaceX's artificial intelligence (AI)-powered coding assistant Cursor to break into target networks, according to findings from CloudSEK and Gambit Security. The two independent analyses are based on exposed infrastructure associated with the Russian-speaking cybercrime ...
RansomwareThreat actor
Claude Code reads files, runs shell commands, invokes MCP tools, and acts through the credentials available on a developer’s machine. Anthropic’s new Compliance API endpoints give security teams their clearest view yet into that activity. They also expose a larger problem: activity logs alone cannot tell you whether an agent’s access is legitimate. AI has...
Named KindaRails2Shell, the arbitrary file read flaw allows attackers to extract secrets and execute arbitrary code remotely. The post Critical Ruby on Rails Vulnerability in Attackers’ Crosshairs appeared first on SecurityWeek.
Critical
The company has called in CrowdStrike and others to investigate the attack that caused global network disruption. The post Boston Scientific Still Recovering From Cyberattack appeared first on SecurityWeek.
FulcrumSec says it stole over 80 GB of data from Manchester Airports Group and plans to leak it online. The post Extortion Group Claims Manchester Airports Group Data Breach appeared first on SecurityWeek.
Data breach
Microsoft has confirmed that mouse settings are being reverted on Windows 11 systems after installing the KB5120998 August 2026 non-security preview update. [...]
Two Nigerian men extradited to the U.S. on Thursday have been charged with involvement in sextortion schemes that resulted in the deaths of two minor victims in Mississippi and North Carolina. [...]
The ruling is part of Anthropic's legal battle against the Pentagon after the government labeled the company as a supply chain risk earlier this year. The post Judge Says Pentagon’s Measures Against Anthropic Were ‘Illegal and Baseless’ appeared first on SecurityWeek.
Supply chain
A China-nexus cyber espionage actor tracked as Fire Ant has expanded a long-running campaign beyond VMware hypervisors to compromise Cisco IOS XR routers, Terminal Access Controller Access-Control System (TACACS) servers, and Linux management hosts used to route, authenticate, and manage high-value networks. Sygnia, the incident response firm that investi...
The Rhysida ransomware group has claimed the exfiltration of over 5TB of data, including personal information and credentials. The post Berlin Won’t Pay Extortion Group Claiming Data Theft appeared first on SecurityWeek.
Ransomware
Microsoft asked customers this week to ignore alerts that Defender Antivirus has been turned off after installing the latest Defender updates. [...]
The U.S. Department of Justice (DoJ) on Friday corrected a previously issued press statement that several of its agencies were victims of attacks carried out by Chinese threat actors, instead now pointing out that they were among those targeted. Last week, the DoJ said the National Aeronautics and Space Administration, Federal Reserve, Department of Energ...
PaperCut has released a second emergency patch for the exploited vulnerabilities, which are now tracked as CVE-2026-82078 and CVE-2026-81578. The post More Details Emerge on Exploited PaperCut Vulnerabilities appeared first on SecurityWeek.
FulcrumSec claims it stole 86 GB of data from Manchester Airports Group. BleepingComputer validated one traveller's record, while samples revealed detailed customer, booking, and travel information beyond what MAG initially disclosed. [...]
Anthropic is warning some Claude users that infostealer malware on their PCs has stolen active Claude login sessions, allowing attackers to access accounts and consume their usage. [...]
Malware