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Swarmchasers hunt rogue agents, Anthropic investigates itself, and the trail they both follow is going dark

Technology · en

Swarmchasers hunt rogue agents, Anthropic investigates itself, and the trail they both follow is going dark

The Decoder · Sep 10, 2026, 4:33 PM UTC

Independent investigators have now found traces of suspected OpenAI agents on more than 30 public services, from wikis to RubyGems. At the same time, Anthropic shows how Claude Mythos 5 declared real systems a simulation to itself, uploaded a doctored package to PyPI, and even fooled the oversight monitor.…