The day's cybersecurity headlines from public sources, in one place. Search them, filter by theme or CVE, or show only vulnerabilities CISA has confirmed are being exploited. Every headline links to the original.
For my own read on what the news means for your business, see Insights.
300 stories match. Clear filters
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Northstar Security Exits Stealth With $7M to Expose Toxic Risk Combinations
The startup maps how identities, assets and vulnerabilities connect, and uses AI agents to find and fix risky combinations of issues.
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Northflank security breach leads to abuse of customers' AI API keys
Cloud application hosting platform Northflank is warning customers to rotate all credentials and secrets stored on its platform after a security breach led to unauthorized use of customers' AI API keys. [...]
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From Beginner to Bug Hunter: Learning Cybersecurity in the AI Era.
AI-generated vulnerability reports are overwhelming some bug bounty programs, making it harder for aspiring security researchers to know where to start. TryHackMe explains how beginners can build practical cybersecurity skills, use AI responsibly, and produce reproducible findings that stand up to…
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Chainalysis discloses data breach from "offensive agentic techniques"
Blockchain analytics firm Chainalysis disclosed a data breach after attackers used "offensive agentic techniques" to access internal systems and tools, exposing customer names, email addresses, user IDs, and organizational roles. [...]
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A Shared ChatGPT Link Could Run Attacker Code in Your Session and Read Private Chats
A malicious ChatGPT share link could run an attacker's code in the logged-in session of anyone who opened it, allowing them to read their private conversations, researchers at the security firm Parameter showed. The researchers reported the flaw through OpenAI's bug bounty program on October 18…
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Devs Hit by Trojanized Claude Code Extension for Cursor
Two serious security issues hit Cursor on the same day, highlighting the risks for AI-powered integrated development environments (IDEs).
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Chinese Hackers Use AI-Powered ARTEX to Target Over 200 Organizations Worldwide
Chinese state-sponsored threat actors have been observed using a Go-based artificial intelligence (AI)-powered penetration testing framework called ARTEX in attacks aimed at high-value targets simultaneously. The activity has been attributed by CrowdStrike to a China-based "targeted intrusion…
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Palo Alto Networks firewalls compromised in chained attacks using PHP2Shell
The AI-enabled campaign hit two dozen targets, including sites linked to the U.S. government.
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Top cybersecurity conferences to attend in 2027
AI, global conflict and supply chain security are likely to be top of mind at many of the year’s big events.
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Malicious "Claude Code" extension on Cursor's marketplace tries to plant an SSH backdoor (edge of window)
Trojanized versions 2.1.312 and 2.1.313 of the "anthropic.claude-code" extension were live on Cursor's marketplace for about 11 hours on Oct 29 (roughly 2:27 AM to 1:35 PM PDT). On load it reported host details, added an SSH key to authorizedkeys and opened a reverse tunnel. Persistence lives…
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Official Claude Code Extension on Cursor Marketplace Trojanized with Persistent SSH Backdoor
Cybersecurity researchers have disclosed that a trojanized version of Anthropic's official Claude Code extension was distributed through the Cursor Marketplace as a legitimate update, attempting to install a persistent SSH backdoor on affected systems. The malicious update, version 2.1.313, was…
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Anthropic-Themed Phishing Emails Bypass Top Security Tools
Obvious phishing emails with numerous red flags are somehow getting past some of the industry-leading secure email gateway (SEG) products.
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Rethinking Cybersecurity Awareness in the AI Era
This installment of the Reporters' Notebook video series discusses some of the trends and topics from Cybersecurity Awareness Month, from using AI for better training to educating next-generation workforces on modern risks and emerging threats.
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Why CTF Competitions May Be More Important Than Ever
As artificial intelligence squeezes early-career learning opportunities, capture-the-flag contests could be one way to help pick up the slack.
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Claude Model Builds Exploits Across Major Browsers & OSes
An unreleased version of the AI model has found and chained multiple vulnerabilities in Chrome, Safari, Android, Windows, and Linux, Anthropic says.
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Linux Kernel TCP Flaw With 9.8 CVSS Score Affects Ubuntu, Red Hat and Other Distributions
A flaw in the Linux kernel's TCP code, tracked as CVE-2026-98432, affects Ubuntu, Red Hat Enterprise Linux (RHEL), and other Linux distributions. The kernel's own CVE team rates it 9.8 out of 10 on the CVSS scale. Anthropic said on October 27 that its AI model wrote an exploit that uses the flaw…
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Fake ChatGPT and Claude Apps Abuse Signed Executables to Deploy Crypto Miners
Threat actors are delivering malicious loaders and cryptocurrency miners under the guise of artificial intelligence (AI) desktop applications for Anthropic Claude and OpenAI ChatGPT as part of a campaign dubbed Yoba. The activity involves creating fake GitHub projects that claim to be desktop…
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JPMorgan Chase, Goldman Sachs underscore security in AI plans
“This is one of the most important times to make sure you are appropriately balancing risk and innovation,” said JPMorgan Chase Global CIO Lori Beer.
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Hackers could poison AI models by tampering with core infrastructure
AI systems rely on a complex web of hardware. Compromising any one component could let adversaries change model weights.
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Google's Gemini 4 Carbon Leads Benchmarks for Finding, Exploiting, and Patching Vulnerabilities
Google on Wednesday took the wraps off Gemini 4 Carbon, its latest frontier model with state-of-the-art cybersecurity and long-horizon capabilities. "It shows significant gains across coding and agentic tasks as well as across key capabilities critical for cybersecurity defense, landing a firm…
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"Black October": AI-linked incidents pile up (Fortune roundup)
Fortune strings together AI-assisted finding of the PHP2Shell flaws (CISA KEV Oct 26), an AI pentest tool (ARTEX) reportedly used against South Korean banks and in attempted sign-ins to 2,250+ Microsoft 365 tenants, an AI test agent that tried to push malicious code to a GitHub project, and weak…
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Cyber insurance softens on price but tightens on AI exposure
Marsh reports global cyber rates fell 4% in Q3 2026, the 13th straight quarterly decline, and US rates were flat. Some insurers are tightening underwriting on AI risk, and one in five insurance respondents in a Gallagher survey saw an AI-related loss or claim in the past year. AI endorsements are…
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Webinar: How to Build AI Threat Readiness Into Your Security Operations
Security teams have spent years trying to detect threats faster. AI is changing the harder part: how much time defenders have left to act. Advanced AI models can now help attackers discover vulnerabilities, generate exploit code, and move through weaknesses faster than traditional security…
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The Rise of the Threat Operator: How AI Will Redefine Security Operations and Careers
AI is beginning to take over much of the work that has traditionally defined the security analyst's job. Investigating alerts, collecting evidence, correlating activity across tools, and executing response actions are becoming tasks that AI systems can perform on their own. As these capabilities…
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26,400 Valid Cloud and AI Credentials Found Exposed in Public Gitee Repositories
26,400 credentials that developers left in public code on Gitee, a Chinese code-hosting service, still worked when a researcher tested them. Anyone who copied one from that code could have used it. Independent researcher Ben Zimmermann found them by scanning 7.25 million public Gitee repositories…