Mythos audit clears Zcash of new serious bugs

Zcash founder Zooko Wilcox says Anthropic’s “Mythos” security review found no additional serious bugs in the Zcash protocol after the recent Orchard security crisis. The Mythos audit was requested by Shielded Labs, using Mythos to re-check the protocol following an earlier AI-assisted discovery of a critical Orchard flaw. According to Zooko, the review adds an extra security layer for Zcash users, while Shielded Labs and other contributors continue ongoing security hardening. A separate community update also states that no serious vulnerabilities were identified, though Shielded Labs has not yet published the full Mythos report. The Orchard incident had raised supply-integrity concerns: the bug affected Orchard’s zero-knowledge proof circuit and (in theory) could have enabled creation of unlimited, undetectable counterfeit ZEC in local testing. Zcash teams responded by temporarily disabling Orchard, then restoring it via the NU6.2 network upgrade with a corrected circuit. Statements from the Zcash Foundation and ZODL said no unauthorized value creation was detected, total ZEC supply stayed intact via accounting (“turnstile accounting”), and user privacy was not affected. Traders should note: this Mythos audit does not prove Zcash is bug-free. But it matters for market confidence after a high-volatility privacy-coin week, when investors were watching for any deeper weaknesses inside Zcash’s shielded infrastructure.
Neutral
Impact is mainly neutral for traders. On the positive side, the Mythos audit (Anthropic) reported no additional serious Zcash protocol bugs after the Orchard incident, which can reduce tail-risk and help stabilize sentiment around ZEC. The Orchard fix itself (NU6.2 restoration and statements of no unauthorized value creation) also supports confidence that the immediate exploit scenario was contained. However, the article explicitly notes the Mythos review does not prove Zcash is bug-free, and Shielded Labs has not yet released the full audit details. In similar past security-driven events for privacy tech, markets often swing on “audit/no audit” headlines but continue to reprice when fuller reports or supply-integrity updates arrive. That implies short-term relief rallies for ZEC are plausible, but sustained trend depends on follow-up disclosures and the separate “trustless supply-audit” progress. Net: near-term sentiment likely improves slightly (not bearish), while long-term uncertainty remains until full findings and ongoing hardening are confirmed.