Re: This transaction is a fraud

somebody hacked my yahoo account and kraken credentials
an unauthorized withdrawal was acceptad
i don't know how to recover my money but that's all!!!

That sucks. Sorry for your loss. Undecided

You should stop using Yahoo immediately. Billions of Yahoo accounts have been compromised in multiple hacks. I recommend a more secure email provider like Gmail.

Like others have said, the money is gone. At this point, you need to worry about securing your computer and accounts. I would follow TheWolf666's instructions regarding cleaning or formatting your PC. I would back up anything important and then format myself. Change your passwords, switch to a more secure email provider, and start using 2FA on your exchange accounts.

i use gmail also and not yet pwned... everything is under 2fa now where it is possible and every password is changed
my doubt not yet solved is why kraken noticed suspect movements and didn't stop any trade, it looks a kind of complicity! they refuse to answer at that

No service would really be keen on detecting unusual activities on any accounts as long the security features had been breached.
Therefore,they can possibly do help you when the issue arises but talking on reverting it back then thats the thing that wont happen ever.
Take this as a lesson learn which you should really be careful on storing important log-in credentials like emails and other stuff.