According to Etherscan data, $22.4 million of a $190 million hack was returned to Nomad after its team announced a reward.
The amount retrieved is now more than double the $9 million handed back to Nomad by ethical hackers on Wednesday. Following Nomad's promise of a 10% prize on Thursday, more cash was recovered.
On August 1, more than 300 addresses took $190 million from Nomad's cross-chain bridge, a service that allows users to transfer ERC-20 tokens between Ethereum, Moonbeam, Evmos, and Avalanche.
The bridge had a serious weakness that became public and allowed finances to be drained. Nomad developers disclosed the vulnerability through a smart-contract update.
On Thursday, the team declared that it would pay the 10% prize to anyone who returned the tokens to a designated return address and that no legal action would be taken against individuals who did so.
Nomad stated that it is working with law enforcement to investigate the event. It has also collaborated with TRM Labs, an on-chain analytics firm, to follow the flow of cash between addresses involved in the exploit.