image source, Getty Images

image caption, The British Library said it had been the victim of a cyber attack.

The British Library says it has evidence that user data was hacked in a cyber attack and put up for sale on the dark web.

The library warned users who use the same password elsewhere to change it.

The attack, which took place on October 31, continues to affect its website, online systems and some on-site services, it said in a statement.

The Rhysida ransomware group claimed to be behind the attack, saying they would auction off the stolen data.

The cyber gang said last week that the value of the data, which included passport scans, was set at 20 bitcoin (£596,459).

The British Library, Britain’s largest, Posted on X. Monday evening, saying: “After confirming last week that this was a ransomware attack, we now have evidence that indicates that the attackers may have copied some user data, and Additional data appears to have been published on the dark web.

“We will continue to work with cybersecurity experts to investigate what this content is and we will contact our customers to advise them of the practical steps they may need to take.”

“If you have a British Library Services password that you use on other websites, we recommend that you change it elsewhere as a precaution.”

Last week the library confirmed that some employee data had been leaked in the attack and at this time there was no evidence that our patrons’ data had been compromised.

The Rhysida ransomware group said on Monday last week that it was behind the attack and shared an image on its leak site on the dark web showing various documents, including HMRC employment contracts and Passports appear.

The BBC has not confirmed whether the data is genuine.

The auction for “exclusive, unique and impressive data” will end just before 08:00 GMT on November 27, and will be sold to a single-party winner, the cybercriminals said.

image source, Rhysida ransomware group

image caption, The Rhysida ransomware group has also stolen data from the Chilean military and the University of the West of Scotland.

The group is also behind recent attacks on the Chilean army, the Portuguese city of Gondomar and the University of the West in Scotland.

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