Ubisoft has revealed via an email to customers that some of its Web sites were recently exploited to gain unauthorised access to some of its online systems.
According to a statement from the company it "instantly took steps" to close off this access, to begin a thorough investigation with relevant authorities, internal and external security experts, and to start restoring the integrity of any compromised systems.
"During this process, we learned that data were illegally accessed from our account database, including user names, email addresses and encrypted passwords. No personal payment information is stored with Ubisoft, meaning your debit/credit card information was safe from this intrusion."
It is recommended that you now change your password.