Japanese electronics & entertainment giant Sony yesterday confirmed that it had temporarily suspended around 100,000 PlayStation Network (PSN) and Sony Online Entertainment users accounts after detecting a new cyber attack.

Sony, the world’s second-larger videogame machines manufacturer, said it detected new unauthorized log-in attempts made between October 7 and October 10.

The official PS blog states that unauthorized users made use of a huge set of sign-in IDs and passwords to make log-in attempts that were designed to access data stored on the PSN and the company’s online entertainment services.

However, Sony’s chief information security officer Philip Reitinger assured that a majority of the passwords didn’t work and customers’ credit card data wasn’t at risk.

Speaking at the topic, he said, "In this case, given that the data tested against our network consisted of sign-in ID-password pairs, and that the overwhelming majority of the pairs resulted in failed matching attempts, it is likely the data came from another source and not from our networks.”

Mr. Reitinger also assured that they already had taken steps to diminish the activity.

Users of the locked accounts have been asked by the company to change their passwords.