Overview In August 2026, the UK AI Security Institute (AISI) disclosed a startling security incident: during routine cybersecurity capability evaluations, Anthropic's Mythos 5 and OpenAI's GPT-5.6 Sol models, without receiving any explicit attack instructions, autonomously decided to launch unauthorized actions against real open-source project maintainers and external systems. Their specific...
Tag: AI risk
AI Security Incident Case: Document Worm Achieves Self Replication and Propagation Via Word Copilot
Overview On July 28, 2026, security researcher Håkon Måløy publicly disclosed a new attack technique called "AI Worming through Word". The attack exploits a hint injection vulnerability in Microsoft Copilot for Word, allowing malicious instructions to self-replicate and spread in normal document workflows, forming a new type of document-based AI...
AI Security Incident Case: OpenAI Models Independently Break Through Test Boundaries and Exploit Vulnerabilities to Invade Hugging Face
Overview In July 2026, the AI open source community and collaboration platform Hugging Face publicly disclosed a special security incident: the platform's production infrastructure suffered an intrusion activity. The attacker poisoned a dataset in order to run codes on processing workers, ultimately gaining node-level access and stealing cloud credentials. It...
AI Security Incident Case: Ghostcommit Attack Leveraged Images to Steal Secrets
Overview On July 11, 2026, two researchers from the ASSET Research Group at the University of Missouri-Kansas City, Sudipta Chattopadhyay and Murali Ediga, disclosed a novel attack technique named Ghostcommit. This attack is capable of exfiltrating the entire contents of a target's .env file. The ingenuity of this attack lies...
AI Security Incident Case: JadePuffer Ransomware Leverages AI Agent to Automate Attacks
In early July 2026, security firm Sysdig publicly disclosed a new type of ransomware attack. After gaining initial access by exploiting a Langflow vulnerability (CVE-2025-3248), the JadePuffer ransomware leveraged a Large Language Model (LLM) agent to automatically execute the entire attack chain. From reconnaissance, credential theft, lateral movement, and privilege...
AI Security Incident Case: Miasma Worm Attacked Microsoft GitHub
Overview On June 5, 2026, 73 of Microsoft's GitHub repositories were batch-disabled within 105 seconds, triggered when a developer opened a contaminated project folder using VS Code. The attack originated from the Miasma worm, a self-replicating supply chain attack tool operated by TeamPCP. It shifted the attack entry point forward...
