Wormhole, one of the largest bridges between Solana and other blockchains, has been hacked 120k wETH, or about $320M — making it the second largest DeFi hack to date.

Wormhole is a protocol that allows users to bridge assets across blockchains. It has over $1 billion in total value locked and supports six blockchains: Terra, Solana, Ethereum, Binance Smart Chain, Avalanche and Polygon. When a user transfers assets from one blockchain to another, the bridge steps in to lock the transaction and mint a wrapped version, such as wrapped ether (wETh), to its final chain.

The interoperability protocol confirmed the exploit in a tweet Wednesday evening.

Announcement tweet: https://twitter.com/wormholecrypto/status/1489001949881978883