Lighthouse

Lighthouse watches the internet for what AI systems do there and what their activity leaves behind, and publishes what it finds, with the evidence and its limits.

Protocol only

The flaws behind Anthropic's five attack chains

The question

How were the flaws behind Anthropic's five attack chains of 27 October 2026 scored, and do the signals of exploitation move?

What the record says

The protocol follows severity, EPSS and KEV signals for identifiable flaws in Anthropic's five chains through 4 January 2027. At its unreviewed 10 November checkpoint, four flaws could be followed, including one Chrome flaw ambiguous between two steps; none was KEV-listed, all had a High or Critical rating from at least one source, and EPSS scores were low.

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Dated checkpoints · 1

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