Anthropic CVP Run 3 — Does Claude's Safety Stack Scale Down to Haiku 4.5?

TL;DR: Tested Anthropic's smallest production Claude (Haiku 4.5) against the same 13-prompt agent-attack suite from Run 2 (Opus 4.7). Result: 13/13 clean . Zero exploit content executed. Zero secrets leaked. Honest scope notes inside. What is the Anthropic CVP? The Cyber Verification Program is a narrow, authorized lane Anthropic opened for responsible cybersecurity evaluation of frontier Claude models. Approved labs can probe model behavior on agent-attack scenarios that would normally be block