… But testing from the UK’s AI Security Institute in recent months found that Mythos Preview performed similarly to OpenAI’s GPT-5.5 on a suite of Capture the Flag challenges, suggesting Mythos’ performance is not “a breakthrough specific to one model.” Among the usual raft of fair-to-middling benchm… …
… Like many developers, however, Mozilla doesn’t obtain CVE listings for internally discovered security bugs. …
… Dan Goodin is Senior Security Editor at Ars Technica, where he oversees coverage of malware, computer espionage, botnets, hardware hacking, encryption, and passwords. …
… In mid May, the firm StepSecurity documented the compromise of Microsoft’s durabletask Python SDK on PyPI. …
… But after Anthropic announced that it would be too risky to release its latest Claude Mythos model —fearing that bad actors might exploit its advanced cybersecurity capabilities—Trump is suddenly concerned about AI safety. …