Gravity Bridge

Gravity Bridge is a cross-chain bridge in the Cosmos ecosystem that connects Ethereum with Cosmos-based chains. Its core business is to enable the transfer of ERC20 assets between these two ecosystems using a lock-and-mint model: tokens are locked on one chain and minted on the other, and burned when users bridge back.

Its main competitive edge lies in its decentralized design. Instead of relying on a small multi-signature wallet or a limited set of operators, it uses the full validator set of the Cosmos chain to sign cross-chain transactions. This aims to reduce the risk of a single point of failure and make the bridge more robust than many alternatives.

The market pain point it addresses is the lack of a secure and decentralized way to move assets between Ethereum and the Cosmos ecosystem. Before such bridges existed, users had to rely on centralized exchanges or less secure intermediary services, which introduced counterparty risks. Gravity Bridge's validator-based signing mechanism was designed to mitigate these risks.

However, in the past six months (2026-02-28 to 2026-08-29), the project suffered a major security incident. On May 30, 2026, the bridge contract's private key was reportedly leaked, and approximately $5.4 million in assets were stolen, including 4.3 million USDC, 274 WETH, 434,000 USDT, and about $64,000 in PAYG tokens. The contract balance was nearly drained, leaving only about $85,000. The attacker moved part of the stolen funds through Binance and ChangeNOW. This incident highlights that even a validator-based design can be vulnerable if key management fails, and it has significantly impacted user trust in the protocol.