Gravity Bridge lost $5.4M after a suspected signing key compromise, forcing validators to halt the bridge to prevent further losses. Primary reason: A suspected compromise of the bridge's signing infrastructure allowed an attacker to drain funds, including USDC, USDT, WETH, and PAXG. Secondary reasons: The attacker quickly swapped assets into ETH and moved part of the funds through services like Binance and ChangeNow, making recovery more difficult. Near-term outlook: The key focus is the investigation and whether the team can identify the root cause. Confidence may remain weak until the bridge resumes operations and publishes a detailed post-mortem. My view: This incident highlights that bridge security remains one of crypto's biggest weak points. What's concerning is that Gravity Bridge is considered more decentralized than many competing bridges, yet a signing-key failure still appears to have caused significant losses. The direct financial impact is relatively small compared to major 2026 exploits, but repeated bridge hacks continue to damage trust in cross-chain infrastructure. The market will likely pay more attention to how the team responds than to the size of the loss itself.