Gravity Bridge Hit by $5.4M Cross-Chain Security Breach

• Gravity Bridge suffered a $5.4M loss after suspected key breach, security firms reported.
• Attackers quickly moved funds via exchanges, yet over $4M in ETH remains in their wallet.
• Cross-chain bridge hacks persist, adding to $328.6M losses across eight incidents in 2026.

Gravity Bridge has lost about $5.4 million after a suspected compromise of a signing key, according to security firm PeckShieldAlert. The attack hit the cross-chain bridge that connects Ethereum and the Cosmos ecosystem, allowing the attacker to drain several digital assets and quickly move part of the funds.

In a post on X, PeckShieldAlert said the stolen assets included $4.3 million in USDC, 274 ETH worth about $553,000, $434,000 in USDT, and roughly $64,000 in PAYG tokens. The attacker routed some of the funds through ChangeNow and Binance shortly after the theft. However, on-chain data shows the…

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