Making Digital Assets Recoverable.

Joined March 2025
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Big news: @LloydsofLondon has made a strategic investment in Circuit as we launch Response, a real-time hack containment system. We’re solving the catastrophic risk puzzle that has kept insurers on the sidelines, enabling real-time asset protection. Read the full story from @Forbes: forbes.com/sites/digital-ass…
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Circuit retweeted
DeFi security is not pricing in the incentives of a nation-state adversary Audits, formal verification, bug bounties are all calibrated for a threat model that ends at "sophisticated hacker." The actual adversary has a national budget, a multi-year timeline, and a nation to fund. "We have a nation state adversary who wants to take all of the money." Harry Donnelly, Founder @CircuitSecurity on the $292M KelpDAO Exploit
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The $292M KelpDAO Exploit: A Step-by-Step Autopsy Shoal Signal Ep. 3 with Harry Donnelly, founder of Circuit (@Circuitsecurity). Hosted by @zaddycoin. We cover the attack anatomy, why LayerZero's DVN architecture made it possible, and how the bad debt cascaded into Aave. We get into Lazarus Group's role and what nation-state attacks on DeFi look like now. And we close on why machine-speed controls matter more than perfect code. 0:00 Intro and background 0:40 What is KelpDAO and rsETH 2:45 LayerZero architecture and DVN design 4:04 The one-of-one DVN vulnerability 6:53 RPC node compromise and attack mechanics 9:48 Aave impact and bad debt cascade 14:18 Loss socialization and precedent setting 18:04 Composability risks and system fragility 22:26 Lazarus Group and fund movement patterns 24:24 What happens next and Circuit's role 28:10 Automated controls and machine-speed detection
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JPMorgan, BlackRock, Circle, Fidelity, Paxos, Stripe, Coinbase, Morgan Stanley. In 14 months every major US financial regulator moved to enable institutional crypto. We broke down what the OCC's proposed rules actually require. linkedin.com/posts/circuitse…
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Detection without response is just documentation of how you got hacked. @CircuitSecurity is closing the gap between alert and action. We're closing the gap between vulnerability and deployment. Different layers. Same problem.
The insurers at Lloyd's of London understood Web3's security problem before most of the industry did. 🧵
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South Korea's tax authority seized a Ledger wallet, photographed the seed phrase, and put it in a press release. Wallet drained within hours. This was after two other agencies had lost in similar ways weeks before. We wrote it up: linkedin.com/posts/circuitse…
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28 Nov 2025
Replying to @CircuitSecurity
Watch the full interview: stabledash.com/events/stable…

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Today, we'll be talking about something important. It's your security. If you hold a portfolio in #Altcoins & $BTC, this podcast episode of @new_era_finance is a must watch. Security of your assets, with Harry, founder of @CircuitSecurity. Watch it here: youtu.be/Co42H9dM06I
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🎙️🔔 Ep. 544 | Digital Asset Recovery Technology with Circuit For episode 544 of the BlockHash Podcast, host Brandon Zemp is joined by Harry Donnelly, CEO and Co-Founder of Circuit at Permissionless 4. Circuit is a breakthrough startup developing cutting-edge technology that makes digital asset recovery secure and reliable. Under his leadership, Circuit has pioneered patented transaction-layer recovery technology that preserves institutional access for digital assets even amid cyberattacks, custodian failures, or internal compromises. Drawing on his expertise in DeFi, security architecture, risk mitigation, and crypto insurance, Harry is addressing a fundamental vulnerability in Web3 — the fragility of private key–based recovery — by enabling leading exchanges, lenders, and stablecoin issuers to improve operational resilience in institutional digital asset custody. Harry previously worked as a trader at JP Morgan and holds a Master’s degree in financial engineering from MIT. ⏰ KEY HIGHLIGHTS (2:30) Circuit Explained (5:58) Circuit Use-cases (9:26) Future of Recoverability (12:17) Circuit at Permissionless 🔗 WATCH/LISTEN NOW - Spotify: tinyurl.com/4k59mhk3 - Apple Podcasts: tinyurl.com/4zz3em5r - Amazon Music: tinyurl.com/4wtnhaut - YouTube: tinyurl.com/ybmztxu6 #BlockHashPodcast #Circuit #DigitalAssets #Crypto #Permissionless #Podcast
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Circuit's recovery engine is now live. Thank you @Cointelegraph! cointelegraph.com/news/circu…

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🚀 🚀 WE'VE RAISED $4.5M TO ELIMINATE DIGITAL ASSET LOSS 🚀 🚀 Today, we’re officially launching Circuit, a digital asset recovery platform built for real-world failure, and a future where digital assets are recoverable by design. Our seed round was led by @nyca with participation from Soma Capital, @newformcapital, @TheVentureDept, @siliconbadia , Druid, Belvedere Strategic Capital, and strategic angels and advisors from @FireblocksHQ , @galaxyhq , @Ripple , and more. #DigitalAssets #SeedFunding #Crypto
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Why now? Because despite all our progress in crypto, we’re still relying on one fragile truth: if the private key is lost or compromised, the assets are lost for good. That’s a $500B problem. Circuit changes that. Our core technology, Automatic Asset Extraction (AAE), embeds recovery logic directly into the wallet stack. When systems fail, wallets are compromised, or keys disappear, Circuit executes pre-approved recovery flows that move assets to safety. No keys. No downtime. No manual rescue plan. This isn’t private key recovery. It’s asset recovery. So when systems break, keys disappear, or wallets are compromised, your assets stay recoverable, your operations intact, and your reputation protected. Circuit is built for the bad days in crypto.
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