Shielded Labs

If you go down the Bitcoin rabbit hole and don't end up at Zcash, you took a wrong turn somewhere.

Dynamic fees are now live on Noir Wallet The @Zcash users can now opt for priority delivery to get faster confirmations when it matters most — including DeFi activity on our partners RHEA, Dew, LEO DEX and MORE. Built with support from @ShieldedLabs. Get your noir wallet at zknoir(dot)com

ZEC Perpetuals are now live for trading. The first US regulated perpetuals on Zcash. Only on Kalshi.

Imagine Bitcoin, but perfect.

Visible wealth is seizable wealth. Encrypt your Bitcoin.

Interesting 🤔

Thanks to @ShieldedLabs for its continued ⭐️⭐️⭐️⭐️⭐️ comm about the #Zcash bug remediation.

Protocol Study #4: Transactions Unpacked: JoinSplit to Actions With @shieldedlabs @shieldedmark @zcashbrazil Watch now on YouTube 👇 youtu.be/ZmA57p318rI

Shielded Labs worked with Anthropic to audit the Zcash protocol with Mythos using prompts provided by @DefuseSec. No serious vulnerabilities were found.

Thanks, Anthropic, for helping protect Zcash users. At Shielded Labs’s request, they ran a security audit of Zcash with Mythos. It did not find any more serious bugs in the Zcash protocol. Shielded Labs and others are continuing security hardening work. Stay tuned for updates.

Shielded Labs has extended Taylor Hornby's (@DefuseSec) agreement through the end of 2026. Taylor will continue serving as a Security Consultant, where his primary focus will be identifying security vulnerabilities and supporting remediation efforts for Zcash. Taylor will also contribute to the Ironwood upgrade. He'll focus on assurance, including security review and formal verification. His goal is to help ensure the protocol and code receive rigorous scrutiny before deployment and that significant issues are identified and addressed as early as possible. This work is crucial. We believe the number of security vulnerabilities being discovered across the industry will continue to increase as AI-assisted security research becomes more sophisticated. Our goal is to stay ahead of that curve. Taylor has spent years working on the security of Zcash, and his discovery of the Orchard vulnerability demonstrated the value of his experience. There’s no one we’d rather have helping us improve the security of Zcash.

@cyberaxe @ZingoLabs Yes. We'll have the recording available later today or tomorrow. Thanks!

@ZingoLabs @ShieldedLabs was this recorded? I can watch

We are live! 📢 Join the next Crosslink Feature Net Workshop hosted by @shieldedlabs on the Zcash Global Discord! We'll discuss: 🔹 Payment process and timeline 🔹 Networking & sync improvements 🔹 Mining participation incentives 🔹 Current network status 🔹 BFT finality options 🔹 Community feedback and next steps Plus, @zk_nd3r will showcase the CTAZ block explorer and monitoring tools for tracking network health and diagnosing issues. Whether you're already participating in the Feature Net or considering joining, this is a great opportunity to get up to date and contribute feedback. 📖 More info: forum.zcashcommunity.com/t/crosslink-in… 🎙️ Join the event: discord.gg/zcash?event=15…

To get ahead of scams, if you're interested in donating to me for finding the Zcash bug, my addresses are in this post or in my replies below (be careful to check the exact username for lookalike scammers). Nothing else has been approved by me. Note: I intend to apply for a bounty through a Zcash coinholder grant, so donations are much appreciated but not necessary! Zcash: u1k6y9wpyc5m5ec3wz49ny9chewklyexn8rdj7928n3zswh0gwl0gh3zwwg37p76j7vrrv8s0dj8rhjfc49pg9yv9mjdea2sn86tnjh99a9424cdvw3aadyz8v40ddancr7e4kjzw07qhrcdez3d9sycx89f87vjw7eaxys2aktsm57tkp t1eykDAemzff7oPAA2E43Z47iawATB4bZRy Solana: D6c34hRcmhkHMXaAhoPXgVw9JYrh84saeSfYnk7ZSjeW ETH: 0x1b8203102aE3469a67E78FF9a78d8A5cC7E7e769 BTC: bc1qtxqv8fzj2pnewj2y5l8nh4ur4rkrvm2kv6mlp9

Really excited to audit the Orchard pool's supply with a very elegant and wonderful approach @ShieldedLabs suggested. More about that later today. But it's funny that the whole time we're fixing it I'm going be paying bills etc. with my Orchard funds! I love it. 😆

Zcash is strong and will get through this. The bug was found, disclosed, and fixed. There is no evidence it was exploited. It was discovered by a white-hat researcher whose job was to find vulnerabilities before attackers could. That's exactly how security should work. Over time, users can migrate to newer shielded pools that benefit from years of research, real-world experience, and lessons learned. Tachyon is expected to be the safest yet. The bigger lesson is that, in the age of AI, every protocol should be relentlessly battle-tested. We now have tools that can analyze code and cryptographic systems at a scale that wasn't possible before. Projects should use them aggressively to find weaknesses before attackers do. Finding a bug isn't a sign that security has failed. Not looking for bugs is.

Incredible transparency and honesty from Zcash devs. I'm glad they found this issue and moved fast to help the network get secured. There isn't a better way to handle these issues.

@taminevg 🙏 Transparency is important to earn trust over the long haul.

@Famous0x3 @SolanaFloor The exact timeline is still being evaluated, but we expect it to take at least a couple of months. We're currently assessing a few different options and their tradeoffs, and plan to follow up next week with a proposal and recommended next steps.

@SolanaFloor @ShieldedLabs When is the network upgrade happening

🚨JUST IN: @ShieldedLabs says a critical zcash:native Orchard vulnerability could have allowed unlimited, undetectable counterfeit zcash:native before it was fixed on June 2. The group is exploring a network upgrade to let users verify Zcash supply integrity and prove that no counterfeit zcash:native exists in the Orchard pool.