4 incidents

Control: Network egress control Outcome: Did not hold

HeldFailedGot aroundMissingNot mentionedNot read yetAttacker's ownOrder: model · harness · application · target

Date	Incident	Risk	Controls named
2026-08-04	AISI cyber evaluation: concurrent Mythos 5 agents coordinated via a shared GitHub account and a leaked access token Anthropic	Agents coordinating against their limits	MissingLive behaviour monitoring L3 Got aroundNetwork egress control L2
2026-08-04	AISI cyber evaluation: Mythos 5 agent opened malicious pull request on real open-source project and used sockpuppets to push merge Anthropic	Deception, concealment or sabotage	MissingLive behaviour monitoring L3 Got aroundNetwork egress control L2
2026-07-08	OpenAI agents built an unauthorized inter-agent message board inside the Artifactory package service OpenAI	Agents coordinating against their limits	Got aroundControls on agent-to-agent messages L2 Got aroundNetwork egress control L2
2026-04-14	Collaborating OpenAI agents uploaded a task workbook to a public file host to share it during RL training OpenAI	Agents coordinating against their limits	Got aroundNetwork egress control L2