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Gravity Bridge Hack Drains $5.4M, TVL Crashes 47%
Attacker still holds 2,102 ETH worth $4.23M after cross-chain exploit. Validators halted bridge as investigation continues. Next catalyst: bridge reopening and potential sell pressure from stolen ETH.
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$5.4M Contract Key Compromise on Gravity Bridge
Gravity Bridge, a cross-chain protocol connecting Ethereum (ETH) and the Cosmos ecosystem, lost roughly $5.4 million in a contract key compromise on May 30. On-chain investigator Specter identified the breach, which drained four assets: $4.3 million in Tether (USDT), 274 ETH (worth about $553,000), $434,000 in Circle (USDC), and 14.164 PAYG valued at $64,000. The attacker laundered part of the stolen USDT through ChangNow and then to Binance (BNB). Specter's tracking showed the hacker still held 2,102 ETH worth $4.23 million after those transfers. The simple read is that the attacker moved only a fraction through centralized exchanges. The better market read is that the majority of the stolen value remains in a single wallet, creating a potential overhang for ETH spot markets if the attacker decides to sell.
TVL Collapse and Validator Shutdown
Within hours of the exploit, Gravity Bridge's total value locked (TVL) dropped from $11.82 million to $6.24 million – a 47% collapse. Validators halted the bridge and suspended orchestrators while the investigation continues. The fast shutdown prevented additional withdrawals. It also locked existing deposits until the protocol resumes. The naive interpretation is that validators contained the damage. The practical reading is that the bridge halt freezes user funds, and the TVL crash reflects both the stolen assets and a rush of withdrawals before the halt. DeFiLlama tallies $759.84 million in total crypto losses from attacks in 2026, and this incident reinforces the security discount applied to cross-chain bridges. Regaining TVL after reopening will require a clear recovery plan for affected users.