SECURITY Signal 111

Anthropic grants ENISA testing access to Mythos 5, excluding 5.1

Techmeme 1 week ago 95 min read ↗ Original

Anthropic has provided the EU cybersecurity agency ENISA with testing access to its Mythos 5 model after months of talks, but access to the newer Mythos 5.1 remains unavailable.

WHY IT MATTERS

This gives a key EU regulator hands-on access to a major AI model for security evaluation, which is relevant for engineers building on such systems. The lack of access to the newer version means ENISA's testing may not cover the latest capabilities, a gap that could affect compliance and risk assessments.

Written by elseif from the cluster below · every claim links back to a source

The three things worth knowing

Anthropic granted ENISA testing access to Mythos 5.

The access followed months of negotiations that began in late May.

ENISA still lacks access to the newer Mythos 5.1 model.

THE CLUSTER

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Techmeme Anthropic gives EU cybersecurity agency ENISA testing access to Mythos 5 after months of talks that began in late May; ENISA still lacks access to Mythos 5.1 (Gian Volpicelli/Bloomberg) 1 week Open ↗