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Researcher who found Zcash's bug with AI adds Monero to his audit queue
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Researcher who found Zcash's bug with AI adds Monero to his audit queue

CoinDesk · Jun 6, 2026, 9:38 AM · Also reported by 1 other source

Key takeaways

  • Asked on X whether he could look for flaws in Monero and other private cryptocurrencies, Hornby replied, "Absolutely!
  • Monero, which trades under the ticker XMR, is among the largest privacy-focused cryptocurrency and hides transaction details by default compared to Zcash, where users can either either transparent or shielded addressed.
  • The bug, in the blockchain's Orchard privacy pool, had gone undetected since May 2022 and could have let an attacker mint unlimited, undetectable counterfeit ZEC.

Asked on X whether he could look for flaws in Monero and other private cryptocurrencies, Hornby replied, "Absolutely! I'll add Monero to my queue of things to audit."

Monero, which trades under the ticker XMR, is among the largest privacy-focused cryptocurrency and hides transaction details by default compared to Zcash, where users can either either transparent or shielded addressed.

Hornby found the Zcash flaw on May 29. The bug, in the blockchain's Orchard privacy pool, had gone undetected since May 2022 and could have let an attacker mint unlimited, undetectable counterfeit ZEC. Shielded Labs, a nonprofit developer on the network, disclosed it on Thursday and pushed through an emergency fix by June 1.

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