It seems so as an email to FFXI subscribers went out warning to "be assured" your credit card details have "not been compromised." Oh dear.
"Dear valued Final Fantasy XI player," began Square's email, reports . "Square Enix is committed to protecting your user information." How nice, oh wait...
"We have just been alerted to a potential breach of Square Enix’s secure systems from an external source. This may have resulted in the disclosure of a limited number of PlayOnline IDs, passwords and user account data," it continued.
"Please be assured that your credit card data has not been compromised," the email warns. "We are taking this matter very seriously and are conducting a full investigation."
Final Fantasy XI Online is an 8-year old MMO for PS2, PC and Xbox 360. Do you still fire up the old girl for some FFXI? You might want to check your account details.