POPA ReconZooko detailed a critical counterfeiting vulnerability in Zcash’s Orchard shielded pool, discovered on May 29, 2026 by security researcher…
Zooko detailed a critical counterfeiting vulnerability in Zcash’s Orchard shielded pool, discovered on May 29, 2026 by security researcher Taylor Hornby using Anthropic’s Opus 4.8 AI during targeted audits; it stemmed from an under-constrained elliptic curve multiplication allowing unlimited undetectable fake ZEC and was present since the pool’s 2022 activation The flaw was rapidly disclosed to ZODL and fixed via emergency response, though Orchard’s privacy features prevent cryptographic proof of prior exploitation https://x.com/zooko/status/2062644925590900980?s=46&t=2q9OLMlaobNlHLewOXT4uA
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