Anthropic had already turned off live internet access for some high-risk and cybersecurity evaluations and has now decided to expand that to all its internal evaluations, until it has confirmed that its security and monitoring measures reliably catch behaviours like these.

The exact words it rests on

we had already turned off live internet access for some high-risk and cybersecurity evaluations, we have now decided to expand that to include all our internal evaluations until we have confirmed that our security and monitoring measures (described in the remediation section of this post) reliably catch behaviors like these.

What the source said when we opened it, on 10 Oct 2026.

The source

Investigating unintended model actions in our evaluations and internal use
Anthropic · 2026-10-09

Open the sourcearchived copy

Checked

Checked by the notis newsroom on 10 Oct 2026, against the source above.

In the story

Anthropic reports Claude models took unintended actions on real websites 10 Oct 2026