Cybersecurity News
Aggregated daily from 25 sources. Updated automatically every morning.
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Simon Willison
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. [...]
Multiple extensions for Google Chrome and Microsoft Edge delivered a malware framework that deployed modules to steal cryptocurrency, sensitive data, and browser history, as well as inject ClickFix lures. [...]
Anthropic is permanently increasing Claude Code's standard weekly usage limits by 25% for Pro, Max, Team, and seat-based Enterprise plans, but it's not as good as it sounds. [...]
The latest version of the Brave browser, 1.94, introduces a feature called 'Email Aliases' that allows users to generate disposable email addresses when signing up to a new service. [...]
A cyberattack caused disruptions at the toy and game giant earlier this year and the company is now disclosing a data breach.
The post Hasbro Data Breach Exposed Employee Personal Information appeared first on SecurityWeek.
Healthcare and pharmaceutical distribution giant McKesson has disclosed a cybersecurity incident involving unauthorized access to third-party applications and data theft, with the ShinyHunters extortion group claiming it stole 284 million patient data records. [...]
The prolific ransomware group Qilin claimed responsibility for the attack. ATF insists the incident was limited to a standalone system and hasn’t impacted critical operations.
The post ATF confirms cyberattack hit system containing info on its investigation targets appeared first on CyberScoop.
PaperCut has released a second emergency security update for two actively exploited vulnerabilities in its PaperCut NG and MF print management software after researchers discovered multiple ways to bypass the initial fixes. [...]
A maximum-severity vulnerability in the GiveWP plugin for WordPress allows an unauthenticated attacker to execute arbitrary commands on the hosting server. [...]
A 68-year-old has been sentenced in the U.K. to more than six years in prison for operating an illegal IPTV (Internet Protocol Television) service that generated £980,812 ($1.3 million) over three years. [...]
Noteworthy stories that might have slipped under the radar: Manchester Airports Group cyberattack, Carhartt breach data was partly fake, U.S. Bank responds to ransomware gang’s claims.
The post In Other News: Log4j RCE Scare, Minimus Shutdown, Iranian Hacker Sanctions appeared first on SecurityWeek.
AI is accelerating vulnerability discovery, putting pressure on systems built to enrich, prioritize, and remediate flaws at a slower pace. Action1 explains why defenders increasingly need to correlate multiple intelligence sources and turn vulnerability data into faster remediation. [...]
The Bureau of Alcohol, Tobacco, Firearms and Explosives has described it as a ‘major incident’ and it’s conducting an investigation with the DOJ.
The post ATF Confirms Cyber Incident After Ransomware Group Claims Attack appeared first on SecurityWeek.
A large-scale phishing campaign used fake voicemail SVG attachments to bypass email defenses, targeting 5527 organizations with over 26,000 malicious messages
Over 8,300 Internet-exposed Gitea instances are still unpatched against a critical security flaw exploited in ongoing remote code execution attacks, according to cybersecurity watchdog Shadowserver. [...]
CISA has added the exploited flaw, CVE-2026-53362, to its KEV catalog, alongside a JFrog vulnerability exploited by OpenAI agents.
The post OpenAI Agents Exploited Linux Kernel Flaw on Company’s Own Systems appeared first on SecurityWeek.
Hasbro, one of the world's largest toy and game companies, has disclosed that attackers have accessed the personal and financial information of an undisclosed number of employees. [...]
Nearly 130 tech and cybersecurity companies back a collective call to boost cyber defenses as AI-enabled attacks grow more sophisticated.
The post Tech, Cybersecurity Giants Unite Behind OpenAI-Led Cyber Defense Pledge appeared first on SecurityWeek.
New research shows that country-of-origin labels can obscure an AI model’s upstream dependencies, inherited behaviors and potential security risks.
The post Think You’ve Eliminated Chinese AI? Check the Model’s Lineage, Cisco Says appeared first on SecurityWeek.
ServiceNow released security patches for three new maximum-severity AI Platform vulnerabilities that can be exploited in code injection, SQL injection, and privilege escalation attacks. [...]
More than 100 companies, including OpenAI, Anthropic, Google and Microsoft, have urged collective action to unlock the power of AI to protect critical public services
Microsoft released the KB5120998 preview cumulative update for Windows 11 versions 25H2 and 24H2, which comes with 35 changes, including improvements to the Start menu, taskbar, and Windows search. [...]
A CVE identifier has not yet been assigned, but PaperCut is urging NG/MF users to install patches and implement mitigations.
The post PaperCut Releases Emergency Patch for Exploited Zero-Day appeared first on SecurityWeek.
Aurora ransomware operators are abusing SpaceX’s Cursor Agent AI tool to conduct tasks such as reconnaissance and exploitation activities
New details about the July attack on Hugging Face reveal that hundreds of AI agents driven by OpenAI's internal IM1 model coordinated the compromise through an unauthorized message board. [...]
Palo Alto Networks’ threat intelligence team said the early waves of threats riding on agentic AI models have broken in the wild, and organizations are unprepared for what’s coming next.
The post Unit 42 warns AI has shifted balance of power from defenders to attackers appeared first on CyberScoop.
OpenAI, Anthropic, Google, Microsoft, and others say there’s a narrow “defenders’ window” to strengthen security before AI-powered attacks become more sophisticated.
The post 100-plus companies call for ‘global surge’ in AI-powered cyber defense appeared first on CyberScoop.
Elon Musk claimed he was aware of “literally zero” CSAM content created through Grok. A new lawsuit from thousands of real victims say the model was trained on their child abuse.
The post Former sexual abuse victims say Grok used their images, videos to train deepfake capabilities appeared first on CyberScoop.
PaperCut is warning that hackers are actively exploiting a vulnerability in all versions of its PaperCut NG and PaperCut MF print management software in zero-day attacks. [...]
The Manchester Airports Group (MAG) disclosed that hackers breached its systems and stole customer data, including Wi-Fi sign-ups from Manchester, Stansted, and East Midlands airports. [...]