ZEC price plummets 30% on critical vulnerability disclosure
The price of Zcash dropped after revealing a protocol flaw in Orchard that theoretically allowed unlimited token creation. The vulnerability, existing since May 2022, was discovered by engineer Taylor Hornby on May 29, 2025.
Hornby used Claude Opus 4.8 to analyze Orchard's cryptographic contours. The model helped identify a flawed elliptic curve multiplication check, enabling transaction forgery. Researchers crafted a working exploit that generated fake coins in a test environment.
Zcash developers released a fix via hard fork on June 3. The project's market capitalization shrank over $3 billion, with ZEC price dipping to $410.
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