The BitTorrent Client uTorrent , established by Ludvig Strigeus and later acquired by BitTorrent Inc. , has issued a warning to its users regarding a security breach of their forum which allowed hackers to steal user information and password hashes of the site . Naturally , uTorrent has urged its users to immediately change their passwords . " As a precaution , we are advising our users to change their passwords . " The breach , as per the advisory alert published by uTorrent , occurred on 6th June after the company was alerted about the breach by the software vendor of the forum . The forum uses an IP.Board and a cloud - based service as cited by SoftPedia . Attackers have downloaded information of all uTorrent users although it is unclear what sort of data has been downloaded . uTorrent 's team believes that all of its passwords have been stolen even those that were hashed . " While the passwords may not be used as a vector on the forums , those hashed passwords should be considered compromised , " says uTorrent . However , what we do know is that uTorrent has hundreds of thousands of registered users , approximately 385,000 . The announcement read that it was very important to reset passwords especially if users were using same credentials for multiple services . " Anyone using the same password for forums as well as other places is strongly advised to update their passwords and/or practice good personal security practices . " If you have an account on uTorrent change your password ASAP before it 's too late ! ;