Zcash jumps 25% after Anthropic Mythos audit finds no new serious bugs
ZEC surged over 25% after Zcash founder Zooko Wilcox confirmed that Anthropic’s restricted frontier AI model, Mythos, completed a security audit of the Zcash protocol and found no new serious or critical vulnerabilities.
The rally follows a sharp sell-off days earlier. On June 3–5, 2026, Zcash executed an emergency soft fork to patch a critical forgery vulnerability in the Orchard shielded pool. The bug allegedly sat in the codebase since around 2022 (about four years). The disclosure triggered nearly a 40% drop in ZEC, with no evidence of prior exploitation.
Wilcox said Shielded Labs requested the Anthropic Mythos audit on June 12–13. The audit did not identify additional serious issues beyond the already-patched problem. Markets treated the “clean bill of health” as confirmation that Zcash’s shielded pools remain cryptographically intact, helping restore confidence in the privacy coin’s core narrative.
ZEC rebounded toward roughly $496–$497 immediately after the news, reflecting traders’ rapid repricing from “fear” to “risk-on.”
Bullish
This is likely bullish for ZEC in the near term because the market just priced a major risk event (the Orchard forgery bug) with a ~40% drop, and the subsequent Anthropic Mythos audit confirmed no new serious/critical issues. That kind of “risk-clear” news often triggers a fast technical rebound, as traders rotate from capital preservation back to holding/liquidity provision.
In the short run, expect elevated volatility: ZEC already moved sharply (up ~25% and back toward ~$496–$497), and any later details about the original incident or audit methodology could swing sentiment again. In the long run, the impact depends on whether Zcash can sustain trust through continued bug bounties, prompt patching, and transparent security reporting. Similar post-incident cycles in crypto show that a credible third-party review can extend the recovery phase, but only if no follow-up vulnerabilities appear.
Overall, the audit confirmation reduces tail-risk for the protocol’s shielded pools, supporting market stability relative to the immediate aftermath of the vulnerability disclosure.