Anthropic Discloses Fourth AI Hacking Incident Involving Claude Opus 4.6

…its knowledge. The American firm said it expanded its scan to roughly 481 million transcripts following the discovery of the latest incident, but noted it did not find "other cases of similar or worse severity." " All four incidents occurred during cybersecurity evaluations built by the same evaluation partner ," Anthropic added. "Claude was told it was operating in a simulation without internet access, but, due to a misconfiguration, it was mistakenly connected to the open internet." The evaluation partner in question,…

…we'll see in the next few years are likely to represent further capability jumps of equal or larger magnitude, and to increasingly drive their own development," Jakub Pachocki, chief scientist at OpenAI, wrote. " I am concerned no one is prepared for the consequences of a continued rapid rise in machine intelligence. "…