Claude Opus

Pierluigi Paganini June 06, 2026
Claude Opus Found a Four-Year-Old Hole in Zcash’s Privacy Layer. Nobody Knows If Someone Already Used It.

Claude Opus 4.8 helped uncover a four-year-old critical flaw in Zcash that could have enabled undetectable creation of counterfeit coins. On May 29, the security researcher Taylor Hornby found a critical vulnerability in Zcash Orchard privacy pool using Claude Opus 4.8. The Zcash team hired Hornby specifically to look for this kind of issue. He […]

Pierluigi Paganini April 20, 2026
AI Model Claude Opus turns bugs into exploits for just $2,283

Claude Opus created a working Chrome exploit for $2,283, showing that widely available AI models can already find and weaponize vulnerabilities. Claude Opus managed to produce a functional Chrome exploit for just $2,283, raising concerns about how easily AI can be used to find and exploit vulnerabilities. Below is the cost of the experiment: Model […]

Pierluigi Paganini March 09, 2026
Anthropic Claude Opus AI model discovers 22 Firefox bugs

Anthropic used Claude Opus 4.6 to identify 22 Firefox vulnerabilities, most of which were high severity, all of which were fixed in Firefox 148, released in January 2026. Anthropic discovered 22 security vulnerabilities in Firefox using its Claude Opus 4.6 AI model in January 2026. Mozilla addressed these issues in Firefox 148. The researchers state […]