zkLink Nova Suffers $786,000 Bridge Exploit: What History Teaches Us About Cross-Chain Security 🚨🛡️
Cross-chain Layer 3 network zkLink Nova has confirmed an active exploit targeting its Arbitrator contracts on Ethereum and Optimism, offering a 20% white hat bounty to recover the assets.
Investigators at Blockaid revealed that the hacker injected a forged batch root through a public relayer. This bypassed verification checks and fooled the Layer 1 escrow contracts into releasing about $786,000 in $ETH and stablecoins.
How this connects to crypto's biggest bridge exploits:
🔹 Different from messaging rails like LayerZero, zkLink Nova holds custody of deposits directly in host-chain escrow vaults to power its Layer 3 network.
🔸 Attackers targeted the verification proof itself. This is the exact same concept seen in the $586M BNB Token Hub exploit and Wormhole's $326M fake signature hack.
🔹 In 2026, bridge and infrastructure exploits like the ~$293M KelpDAO incident have accounted for over 76% of all stolen crypto capital ($1.315B+ lost in H1 2026 alone).
Do you keep funds parked in cross-chain bridges? 👇
#zkLink #Ethereum #DeFi #CryptoSecurity #Layer2
Cross-chain Layer 3 network zkLink Nova has confirmed an active exploit targeting its Arbitrator contracts on Ethereum and Optimism, offering a 20% white hat bounty to recover the assets.
Investigators at Blockaid revealed that the hacker injected a forged batch root through a public relayer. This bypassed verification checks and fooled the Layer 1 escrow contracts into releasing about $786,000 in $ETH and stablecoins.
How this connects to crypto's biggest bridge exploits:
🔹 Different from messaging rails like LayerZero, zkLink Nova holds custody of deposits directly in host-chain escrow vaults to power its Layer 3 network.
🔸 Attackers targeted the verification proof itself. This is the exact same concept seen in the $586M BNB Token Hub exploit and Wormhole's $326M fake signature hack.
🔹 In 2026, bridge and infrastructure exploits like the ~$293M KelpDAO incident have accounted for over 76% of all stolen crypto capital ($1.315B+ lost in H1 2026 alone).
Do you keep funds parked in cross-chain bridges? 👇
#zkLink #Ethereum #DeFi #CryptoSecurity #Layer2
