Security specialist Sophos has put out a stark warning to anyone who has entered their credit card details on the PlayStation network, saying they should "cancel that card immediately".
Sony this week admitted that a hacker has infiltrated the PSN and, along with it, the personal information of potentially all of the 70 million people who use the service.
In the UK, three million people are part of the PSN, and Graham Cluely from Sophos believes that everybody should be changing passwords and cancelling cards to minimise any damage.
Treasure trove
"If you're a user of Sony's PlayStation Network, now isn't the time to sit back on your sofa and do nothing," said Cluely.
"The fraudsters won't wait around - for them this is a treasure trove ripe for exploiting. You need to act now to minimise the chances that your identity and bank account become casualties following this hack."
"That means, changing your online passwords (especially if you use the same password on other sites), and considering whether it would be prudent to inform your bank that as far as you're concerned your credit card is now compromised."
Alongside credit cards and passwords, there were also personal details obtained – such as dates of birth, email account information, names and addresses.
Sony does not yet know how systemic the hack was, but announcing that all credit card details could be compromised means that this could be one of the biggest data leaks the web has ever seen.

i heared on the news today that arround 70 million people arround the world are already affected by the hack

its the on all webpages / radios / televisons its officaly confirmed by sony now that the data has leaked !

well sony has to pay allot now i think and will face a few courts i think cuz CFW started as allot of fun backing up games and stuff but now it had gone way to far !!!

:p