Security News > 2023 > May > Capita warns customers they should assume data was stolen
Business process outsourcing firm Capita is warning customers to assume that their data was stolen in a cyberattack that affected its systems in early April.
Almost six weeks after the attack was disclosed, Capita warned Universities Superannuation Scheme, the largest private pension scheme in the UK, to react to the incident under the assumption that their members' data was stolen.
"While Capita cannot currently confirm if this data was definitively 'exfiltrated' by the hackers, they recommend we work on the assumption it was. We are awaiting receipt of the specific data from Capita, which we will in turn need to check and process," USS said on Friday.
On April 17, the Black Basta ransomware gang added a private entry for Capita to its data leak site using a private link, threatening to sell allegedly stolen data, including personal bank account details, physical addresses, passport scans, and other sensitive info.
On April 20th, Capita revealed that the attackers exfiltrated files from roughly 4% of its "Server estate," including systems customer, supplier, or colleague data after gaining access to Capita's systems on March 22 and remaining active until the firm discovered the breach on March 31.
After another two weeks, on May 5th, Capita published a new update saying that "Data was exfiltrated from less than 0.1% of its server estate."