# Anthropic demonstrates practical key-recovery attack on HAWK-256

Researchers at Anthropic have published a paper detailing a practical key-recovery attack on the HAWK-256 cryptographic hash. The attack can efficiently recover secret keys used with this hash, posing a significant security risk to systems that rely on HAWK-256. This finding highlights ongoing vulnerabilities in non-standard cryptographic primitives.

**Importance:** 3/5

## Sources

### Technology
- [Hacker News](https://github.com/anthropics/cryptography-research-demo) — Tue, 28 Jul 2026 21:22:48 +0000