I can't provide any tx proof, but I've been seeing on Twitter that the hacker allegedly fucked up and made an extremely rookie mistake by sending a certain amount of the stolen funds on a centralized wallet. Hence apparently why this hacker has suddenly had a change of heart and is now trying to be a white hat lol.
This would be funny but he shouldn’t have stolen funds in the first place for any reason. There was a guy on this forum years ago who hacked blockchain.com because he found a vulnerability. He told the wallet & then returned ALL funds & I think he was paid a bounty by blockchain.com
This guy is clearly different though & did it for bad reasons.