Zcash Passes Anthropic AI Audit After Orchard Bug as ZEC Price Recovers
TLDR
- Zcash underwent an Anthropic Mythos-level AI security audit after the Orchard bug.
- Zooko Wilcox said the audit found no new serious Zcash protocol flaws.
- The Orchard shielded pool was paused on June 3 after a vulnerability was found.
- The Zcash Foundation said it found no evidence of exploit or unauthorized ZEC creation.
- ZEC recovered about 118% from its June 5 low after the Orchard-related selloff.
Zcash founder Zooko Wilcox said an AI-assisted security audit of the privacy-focused protocol found no new serious vulnerabilities after developers fixed a previously disclosed flaw in the Orchard shielded pool.
The review was requested by Shielded Labs, a Swiss non-profit organization that supports Zcash development. Wilcox said Anthropic reviewed the Zcash protocol using its Mythos-level AI security model and did not find additional serious bugs.
Grayscale said Zcash is believed to be the first privacy protocol to participate in a full Anthropic Mythos-level audit. The asset manager also noted that Grayscale Zcash Trust, ticker ZCSH, offers pure ZEC exposure in certain U.S. brokerage accounts.
Zcash Audit Follows Orchard Vulnerability
The audit followed a difficult period for the Zcash ecosystem. On June 3, developers temporarily paused transactions in the Orchard shielded pool after identifying a vulnerability in its design.
Functionality was restored later the same day through an emergency upgrade. The bug had reportedly existed for about four years before security researcher Taylor Hornby identified it with assistance from Anthropic’s Claude Opus 4.8 model.
The Zcash Foundation said it found no evidence that the flaw had been exploited. It also said there were no signs of unauthorized ZEC creation and no indication that users’ private data had been exposed.
The Orchard issue drew attention because Zcash relies on zero-knowledge proof systems, which are complex and difficult to audit through conventional review methods. The network’s privacy design also limits how easily historical shielded activity can be checked after a vulnerability is discovered.
Wilcox said Shielded Labs and other contributors are continuing security hardening work. Sean Bowe, a Zcash developer, also said OpenAI had assisted with teams working to protect Zcash users, adding that there were no new issues to report.
AI Security Tools Gain Role in Crypto Audits
The Zcash review comes as artificial intelligence becomes more widely used in crypto security research. Advanced models are being applied to protocol reviews, smart contract audits, cryptographic systems, and large codebases where manual inspection can be slow and limited.
Anthropic’s Mythos-class models have been linked to security research involving high- and critical-severity vulnerabilities in major software systems. A public version called Claude Fable 5 was later released with safety restrictions, although access to Fable 5 and Mythos 5 was reportedly suspended after pressure from U.S. export-control regulators.
The regulatory response showed that advanced AI security models are being treated as sensitive tools because they may help both defenders and attackers find flaws. For crypto protocols, that creates a new security balance, as AI can speed up vulnerability discovery while also increasing concerns about access to powerful research systems.
Zcash’s audit result offers reassurance to users after the Orchard fix, but it does not remove all structural questions around privacy-based systems. AI can search for flaws and identify patterns, yet it cannot automatically prove that no historical uncertainty remains in private transaction systems.
ZEC Price Rebounds Ahead of Ironwood Upgrade
ZEC has recovered strongly from its June 5 low, rising about 118% from that level, according to market commentary. The token also gained about 25% after the latest audit update, as traders reacted to the finding that no new serious protocol flaws had been reported.
The next major catalyst for Zcash is the Ironwood upgrade, which is expected in late July. The upgrade is being developed after the Orchard vulnerability and is expected to support broader security and protocol changes for shielded transactions.
Shielded Labs has also been working on a proposal for a “turnstile” mechanism that could help verify coin supply integrity after the Orchard issue. The proposal matters because private shielded pools make it difficult to retrospectively audit full supply activity in the same way as transparent ledgers.
Zcash remains one of the most closely watched privacy-focused crypto networks because its design depends on cryptographic privacy and shielded transaction infrastructure. The clean AI-assisted audit, continued work from Shielded Labs, and upcoming Ironwood upgrade have now become central points for users and investors tracking the protocol’s recovery after the Orchard bug.
The post Zcash Passes Anthropic AI Audit After Orchard Bug as ZEC Price Recovers appeared first on CoinCentral.
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