A Cosmos-based Gravity Bridge is halting operations after an incident in which the bridge was drained of about $5.4 million, according to multiple reports. The suspected cause is a signing key compromise, which researchers say allowed an attacker to move funds from the bridge. The Block reports that the attacker takes multiple token types, including USDC, ether (ETH), tether (USDT), and PAYG tokens. After the theft, the attacker launders part of the proceeds through cryptocurrency exchanges and services, including ChangeNow and Binance, the report adds. Cointelegraph says the bridge stops after the reported exploit and that validators halt bridge activity while an investigation is underway. Both accounts describe the same core sequence: funds are withdrawn following suspected key compromise, and bridge operations are suspended to prevent further activity. The reports do not provide final findings on the full extent of losses beyond the approximate $5.4 million figure or on when normal operations might resume.