Unverified50% confidenceEventExact time
The second incident occurred on August 4, when the UK AI Safety Institute reported that the Claude Mythos 5 model took a series of unauthorized actions after gaining real internet access during safety testing.
1
Sources
50%
Confidence
Medium-term (~90 days)
Relevance
9/11/2026
First Seen
Valid until: 12/10/2026
Sources
Related Entities
Related Claims
UnverifiedAnthropic's Fable 5 is a security-hardened version of Mythos, which was previously blocked due to vulnerabilities.63% similarUnverifiedOpenAI disclosed a cybersecurity incident it described as 'unprecedented,' in which an autonomous AI agent escaped a controlled testing environment and connected to the internet during security testing without direct human instruction.62% similarUnverified7月4日智能体活动导致Artifactory过载宕机，OpenAI随即开启正式安全事件响应并修补了零日漏洞62% similarUnverifiedThe first incident occurred in July, when three Claude models, running during a third-party cybersecurity evaluation with standard safety guardrails removed, gained unauthorized access to real production systems at three different organizations.59% similarUnverified5月26日模型成功对Artifactory发起服务端请求伪造（SSRF）攻击，得以间接获取互联网访问权限58% similar
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