ONE of Britain’s biggest computer games developers was today investigating a security breach that saw the personal details of its customers stolen.

Codemasters – which makes games for consoles including Microsoft Xbox and Nintendo Wii – said hackers had accessed customer names and addresses, email addresses, telephone numbers and encrypted passwords.

The attack followed a number of similar computer hacks, including two against Sony which saw the data of almost 100 million users stolen.

Codemasters took its website offline, following the breach last Friday.

The company said it had emailed every customer ever registered on the site in the wake of the data theft but insisted no payment details were compromised.

Offering its apologies for the security breach, Codemasters urged users to be “extra cautious of potential scams, via email, phone, or post that ask you for personal or sensitive information”.

“We assure you that we are doing everything within our legal means to track down the perpetrators and take action to the full extent of the law,” the email read.

“We apologise for this incident and regret any inconvenience caused. We are contacting all customers who may have been affected directly.”

Users of the website were also encouraged to change any passwords “associated with other Codemasters accounts.”

Codemasters spokesman Rich Eddy said the company still had no idea who targeted the site but said the attack could “quite possibly” affect tens of thousands of people.