According to a report from CNET, it seemed that the hacker group that claimed responsibility for the DDoS on Blizzard’s servers also claimed to have hacked PSN which apparently led to more than 2,000 logins being compromised. Well Sony has since come forward and denied that any attack had taken place on their servers.
In a statement issued to Joystiq, Sony said, “We have investigated the claims that our network was breached and have found no evidence that there was any intrusion into our network.” They also added, “Unfortunately, Internet fraud including phishing and password matching are realities that consumers and online networks face on a regular basis. We take these reports very seriously and will continue to monitor our network closely.”
Now CNET notes that it is possible that the claims are false and that the logins posted online could simply be data from previous data breaches. However if you’d like to err on the side of caution, it probably wouldn’t hurt if you went ahead and updated your passwords anyway, just to be safe.