The outfit has admitted that 2K Support itself has been compromised, with the hacker sending seemingly legitimate emails containing malicious links. 2K has pulled the plug on its website for now.
If users have clicked on these links already, 2K recommends they immediately change passwords saved in web browsers, install anti-virus software, enable multi-factor authentication where possible, and check that no email account forwarding settings have been changed.
2K Support's Twitter account, which has remained secure, shared the news. "Earlier today we became aware of that an unauthorised third party illegally accessed the credentials of one of our vendors to the help desk platform that 2K uses to provide support to our customers," it said.
"We deeply apologise for any inconvenience and disruption that this matter may cause," it added. "We appreciate the ongoing support and understanding from our player communities."