Post
Topic
Board Bitcoin Technical Support
Re: URGENT rivalling an unconfirmed unauthorized transfer of 52 BTC
by
DannyHamilton
on 16/07/2014, 17:56:10 UTC
Is there a way to cancel or compete with an unconfirmed transaction to make the original one invalid?

https://blockchain.info/tx/22284fac41ed4e78cb531f020d8f21dd0285694809f1d048a02aae4915161ccd

That's a hacker transferring out 52 BTC fresh from DGEX exchange's payout account.

We are not expecting to get it back but it would be nice to know. Thank you for any advice.

Your only chance would be to contact the operators of the largest mining pools and convince them that the transaction should not be confirmed.  Then submit directly to them an alternative transaction that spends the same inputs, but assigns the output to an address that you control, and convince them to confirm your replacement transaction instead.

This will be a very tough sell.  Good luck.

Edit: Nevermind, I see that blockchain.info has an out of date database.  Looking at blockr.io I see that the transaction actually already has 12 confirmations. It is too late to do anything about it.