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Google Study Shows LLM-Generated Malware Is Getting Harder to Track and Stop

A Google security report catalogs emerging LLM-enabled cyberattack techniques including morphing malware with mutation engines, logical-flaw discovery in code, and AI-directed obfuscation networks. The report was prompted in part by a real incident where hackers used an LLM to find a zero-day in a widely used web administration tool. Separately, the UK AI Security Institute found that Claude Mythos Preview and GPT-5.5 can reliably execute attacks expected to take humans 3 hours, up from earlier 1-hour benchmarks, with performance scaling further when token limits are relaxed. The findings suggest an accelerating gap between LLM offensive capability and conventional defensive tooling.