Capita informed the Trustee that the incident arose following initial unauthorised access on or around 22 March 2023 which was interrupted by Capita on 31 March 2023. Capita made a formal notification to the stock market on 3 April noting that there was some evidence of a limited transfer of data from their servers and that Capita were investigating the data breach to identify those that were impacted.
On 17 May 2023, Capita first informed the Trustee that some Scheme data was taken. On 2 June 2023 we were informed that some additional data had also been taken.
In the period up to 2 June 2023, Capita were still carrying out their internal investigation to check for any impacts on Scheme data, and we kept in regular contact with them so that we could update members as quickly as possible if there were any relevant developments.
Following each of notifications (on 17 May and 2 June 2023), we needed to gather further information (including obtaining Experian codes) and take the steps necessary to contact members as quickly as we could.
After reviewing the affected data themselves, Capita commissioned an independent third party review to check the data.
This external check of the affected data by the independent third party reviewer reported back to us in spring 2024 and unfortunately it identified that some new or additional data had been affected. We are sorry that it took a long time to identify this, but the external review was very thorough and so it took a long time. Extensive work was required to finalise the external check of data including the removal of duplicate results. This was monitored and regularly chased by the Trustee and AXA UK. Once we received the completed results of the external check with details of the new and additional impacted data, the Trustee endeavoured to issue communications to affected members as soon as possible.