<prompt> Human: I just got my 401K statement and found out 100K was withdrawn 2 months ago. To my knowledge my computer has not been hacked, no other accounts have been affected, but this pretty much wiped out my life savings. I am not looking for sympathy but if anyone has had this happen to them I would like to know. I am calling the provider as soon as they open and the FBI right after that. The company has my correct address as they send me quarterly statements, so I am surprised they did not send a confirmation to me an the withdrawal. Does anyone know if the IRS is now going to come after me for taxes and early withdrawal penalties?Assistant: This is extremely unsettling, especially considering the fact youve been monitoring your quarterly statements. For someone to loot your 401k, theyd need:The account number, custodian, passwords or pin numbers, plus all the employer and employee information.Its rather obvious at this point, that youve got some serious data-corruption issues to resolve. In the interim, check with your company. Has this happened to anyone else? Was there a widespread security breach? Immediately call your Provider, as well. They will instruct you further.As a future reference to anyone reading this; SET UP ALERTS within your provider; request updates on any withdrawals, transfers, account links et cetera.Best of luck, OP. Hang in there.Human: Thanks, unsettling was not my first word, but yes, it is. I am separated from that company now, but before you ask all of the funds were fully vested. Assistant: Wait, did you roll it over after your employment ended?Human: I did not personally, however, here is what happened, the company was bought out by another company, they terminated the original contract and transferred the funds to Fidelity, I did not receive notification but the original plan knew what happened and I have found the money, thanks to everyone  <response>: every one is interested, maybe edit OP? 