The personal information of more than 100 British officials, including spies from the foreign intelligence agency MI6 and special forces such as the SAS (Special Air Service), was included in the data leak, according to BBC News and other outlets.
The Ministry of Defence did not immediately respond to a Reuters request for comment.
On Tuesday, Defence Secretary John Healey issued an apology, acknowledging that the leak also included information about lawmakers and senior military figures who supported Afghan allies seeking refuge in the UK.
The breach led the former Conservative government to launch a secret relocation programme, estimated to cost around 2 billion pounds ($2.68 billion) to protect those affected. A court-imposed ‘superinjunction’ which banned media coverage of the leak or the relocation programme and even that there was such a veto in place, was lifted on Tuesday.