AI-assisted audit reveals exploitable Zcash Orchard bug, patch issued June 4

Zcash developers disclosed a critical flaw in the Orchard shielded pool after security engineer Taylor Hornby found an issue that could enable unlimited counterfeit ZEC. On June 4, Shielded Labs' Zooko Wilcox said the bug was confirmed exploitable in a local regtest using AI-assisted analysis, including Anthropic's Opus 4.8. ZEC later traded at $326.15 on June 5, down 45% in 24 hours, alongside a 39.6% weekly and 44.7% monthly decline.