Researcher Taylor Hornby to Audit Monero Following Zcash Bug Discovery

Security engineer Taylor Hornby, recognized for discovering a critical bug in Zcash, has announced plans to audit Monero and other privacy-focused cryptocurrencies. The vulnerability in Zcash, which was hidden in the Orchard privacy pool since May 2022, was reported on May 29, 2026, and could have enabled attackers to mint unlimited counterfeit ZEC without detection.

This flaw led to a 38% drop in Zcash's value within 24 hours of its revelation and necessitated an emergency fix by June 1, 2026. Hornby, who was hired by nonprofit developer Shielded Labs to identify protocol bugs early, disclosed the vulnerability instead of exploiting it, reflecting his commitment to the community. He plans to apply for a Zcash coinholder grant to fund further audits as he expands his focus to include Monero.

In response to inquiries about auditing Monero, Hornby stated, "Absolutely! I’ll add Monero to my queue of things to audit." Monero, trading under the ticker XMR, distinguishes itself by default in hiding transaction details, unlike the dual option found in Zcash where users can choose either transparent or shielded addresses.

This development raises concerns about the potential for undiscovered vulnerabilities in other cryptocurrencies, especially in the wake of powerful AI systems being applied in security audits. Hornby’s work highlights the growing intersection between artificial intelligence and cryptocurrency security, particularly in privacy coin audits.

As Hornby embarks on this new audit, stakeholders in both Zcash and Monero will be keen to observe his findings, which could have broader implications for the security and trustworthiness of privacy-focused cryptocurrencies.