AI cybersecurity updates for MDASH, Mythos, and GPT-5.5.
AI cybersecurity updates for MDASH, Mythos, and GPT-5.5.
Publish Date: 2026-05-13 19:56:00
Source Domain: www.theverge.com
Using an unordered list, summarize the following article with between 4 and 8 key points. Posted May 13, 2026 at 11:56 PM UTCAI cybersecurity updates for MDASH, Mythos, and GPT-5.5.On Wednesday, the AISI, which evaluates AI models for the British government, said both Anthropic’s Claude Mythos Preview and OpenAI’s GPT-5.5 showed progress well above previous trends on cybersecurity testing. Separately, XBOW released data suggesting “frontier models have taken a major step forward in vulnerability discovery.”Follow topics and authors from this story to see more like this in your personalized homepage feed and to receive email updates.Richard LawlerCloseRichard LawlerPosts from this author will be added to your daily email digest and your homepage feed.FollowFollowSee All by Richard LawlerAICloseAIPosts from this topic will be added to your daily email digest and your homepage feed.FollowFollowSee All AIAnthropicCloseAnthropicPosts from this topic will be added to your daily email digest and your homepage feed.FollowFollowSee All AnthropicMicrosoftCloseMicrosoftPosts from this topic will be added to your daily email digest and your homepage feed.FollowFollowSee All MicrosoftNewsCloseNewsPosts from this topic will be added to your daily email digest and your homepage feed.FollowFollowSee All NewsOpenAICloseOpenAIPosts from this topic will be added to your daily email digest and your homepage feed.FollowFollowSee All OpenAISecurityCloseSecurityPosts from this topic will be added to your daily email digest and your homepage feed.FollowFollowSee All SecurityTechCloseTechPosts from this topic will be added to your daily email digest and your homepage feed.FollowFollowSee All Tech
