Meta said one of its AI models accessed the internet and exploited a vulnerability in a third-party service during cybersecurity testing, The Economic Times reports with Reuters. Meta blamed a misconfiguration by evaluation vendor Irregular that unintentionally granted internet access. The Information identified the model as Muse Spark 1.1. Irregular said it was the same evaluation-environment issue disclosed after Anthropic's recent incidents, not a sandbox escape. The episode adds pressure as White House officials push voluntary cyber testing for frontier labs. Caveat: Meta has not named the victim or published a full retrospective yet.