Tag: Claude Mythos
20 articles tagged Claude Mythos
AISI: GPT-5.5 matches Anthropic Mythos on offensive cyber tasks
UK AI Safety Institute says GPT-5.5 hit 71.4% on Expert-tier cyber tasks and completed its 32-step corporate-network attack range — second model to do so after Mythos.
UK government in ongoing Anthropic talks over Mythos bank access
UK officials are still negotiating expanded Claude Mythos rollout to British banks as Anthropic declines to commit to a timeline, one week after initial access.
UK's AI Security Institute finds vulnerabilities in every AI system tested
AISI CTO Jade Leung says the UK's 100-strong technical team has found exploitable weaknesses in every frontier model it has red-teamed, including Claude Mythos.
NCSC chief says frontier AI can be 'net positive' for UK cyber defence
NCSC director Richard Horne tells CyberUK that advanced AI tools like Claude Mythos can strengthen UK defences if models are secured from misuse.
Mythos tests global cyber defences as UK AI minister says 'we should be worried'
Anthropic's Claude Mythos outpaces patching cycles with thousands of zero-day discoveries, and UK AI minister Kanishka Narayan warns of genuine capability risk.
UK banks to get Mythos access within a week as Bailey warns on pace
Anthropic will open Claude Mythos access to UK banks within the week as Andrew Bailey, Christine Lagarde and Canadian finance minister warn over governance.
EU regulators welcome Anthropic's staged rollout of Claude Mythos
The European Commission has publicly backed Anthropic's decision to delay general release of its cyber-capable Claude Mythos model, citing large-scale cyber risk concerns.
Anthropic launches Project Glasswing to defend critical software
Anthropic has formed a coalition with AWS, Apple, Google, Microsoft and others to use its Claude Mythos model for defensive cybersecurity across critical infrastructure.
Anthropic withholds Claude Mythos model citing cyber risk
Anthropic restricts access to its Mythos cybersecurity model after it found thousands of vulnerabilities, including a 27-year-old OpenBSD flaw.
