A purpose-built AI system discovered a critical bug in Zcash's Orchard circuit that had remained undetected for four years鈥攋ust days after the AI model was deployed.
Key Details:
- The vulnerability existed in Zcash's Orchard pool since 2022
- Bug survived multiple professional audits and expert reviews
- AI harness specifically designed by researcher caught the flaw
- Issue was a double-spend bug affecting the privacy coin's core functionality
Why It Matters: This case demonstrates both the potential of AI in security auditing and the challenges of detecting counterfeiting flaws in privacy-focused cryptocurrencies. Unlike exchange hacks with visible losses, bugs in privacy coins are harder to assess and verify.
The discovery raises questions about traditional audit processes and highlights how specialized AI tools may complement human security reviews in finding complex vulnerabilities.
A bug that sat in Zcash's Orchard circuit for four years was found by an AI, days after the model shipped. In Part 4, @rabizzzy breaks down how a researcher's purpose-built AI harness caught it.
Apyx Finance Launches First Dividend-Backed Stablecoin After Quantstamp Audit
Apyx Finance has officially launched following a completed security audit by Quantstamp. The project introduces a Dividend-Backed Stablecoin (DBS) that converts preferred equity from Digital Asset Treasuries into onchain yield. **Key Details:** - Apyx represents a new stablecoin model backed by dividend-generating assets - The platform transforms preferred equity issued by Digital Asset Treasuries (DATs) into enhanced yield opportunities - Quantstamp completed the security audit prior to launch The full audit report is available for review at [Quantstamp's certificate portal](https://certificate.quantstamp.com/full/apx-usd-stablecoin/2a5be074-3d9f-49e7-aa08-46fb5f1e5bd6/index.html). This launch marks the first implementation of a dividend-backed stablecoin model in the market.
Quantstamp Completes Security Audit for Beep's Autonomous Trading Protocol
Quantstamp has completed a security audit for Beep, an autonomous alpha protocol that deploys agents to trade capital across DeFi platforms and prediction markets. **Key Details:** - Beep operates as an autonomous trading system using agents - The protocol focuses on DeFi and prediction market opportunities - Full audit report is now publicly available This follows Quantstamp's recent audit work for AFI Protocol in December 2025, which focused on Proof-of-Reserve infrastructure for Real-World Assets. [View the complete audit report](https://certificate.quantstamp.com/full/beep/c5dd6095-8a97-4461-a4f2-2a93a27840dd/index.html)
BitSafe Finance's Wrapped Bitcoin Token Passes Security Audit
Quantstamp completed a security audit of BitSafe Finance's $CBTC, a 1:1 wrapped Bitcoin token built on Canton Network. **Key Findings:** - The audit reviewed Daml smart contracts for the wrapped BTC token - Token complies with CIP-56 Canton Token Standard - No high-severity security issues were discovered The full audit report is publicly available on Quantstamp's certificate platform. This marks another milestone in bringing Bitcoin liquidity to enterprise blockchain networks through compliant tokenization standards. [View Full Report](https://certificate.quantstamp.com/full/cbtc/5d0d805e-8cf0-4a39-bf1a-0e94899b3c1c/index.html)
Quantstamp Joins BNB Chain Kickstart Program as Official Service Provider
**Quantstamp** has officially joined the **BNB Chain Kickstart Program** as a service provider, offering blockchain security solutions to emerging projects. **Key Benefits for Projects:** - 15% discount on all Quantstamp security services - Access to smart contract vulnerability scanning - Support from day one of development The Kickstart Program provides essential tools and support for builders launching on BNB Chain. Projects can now secure their smart contracts at a reduced cost while accessing Quantstamp's security expertise. **About the Partnership:** This collaboration strengthens the BNB Chain ecosystem by making professional security auditing more accessible to new projects. Developers can focus on building while ensuring their code meets security standards. [Learn more about BNB Chain Kickstart Program](https://www.bnbchain.org/en/programs/kickstart)