UK secretly relocated thousands of Afghans after data leak, documents reveal

The file, which had over 33,000 rows of data, included names, contact details, and information on applicants’ family members. The MoD did not detect the breach until August 2023, when part of the data was published on Facebook.

In April 2024, the government created a confidential scheme called the Afghanistan Response Route. Defence Secretary John Healey told Reuters that “around 4,500 affected people are in Britain or in transit” and that the scheme had cost about £400 million so far.

Court documents reveal that up to 20,000 people may need relocation, pushing the total cost into the billions once legal expenses and compensation are included.

What is superinjunction?

The government kept the operation secret under a superinjunction — a court order which banned any mention of the case. MoD lawyers told the court there was a “very real risk that people who would otherwise live will die” if the Taliban became aware of the leak, as reported by The Independent.

A government-commissioned review, led by retired civil servant Paul Rimmer, found that while Afghanistan remains dangerous, the Taliban are likely to already possess similar information. “It is unlikely the dataset would be the single, or definitive, piece of information enabling or prompting the Taliban to act,” the review stated. It also said the secrecy and creation of a bespoke scheme may have “inadvertently added more value to the dataset.”

The superinjunction, one of the longest of its kind, was lifted on 4 July 2025 after the MoD agreed it was no longer necessary.

Thousands relocated

As of May 2025, about 16,000 people affected by the breach had been relocated to the UK. This includes many who were ineligible under the original Arap scheme but were assessed as being at risk. In total, around 36,000 people have been relocated under Arap and related schemes since 2021.

Prime Minister Keir Starmer, whose government took office in July, told Reuters, “This should never have happened. We owe a duty of care to those who helped British forces, and this breach has put lives at risk. Our priority now is to bring them to safety and ensure full accountability.”

The government is also preparing for hundreds of legal claims. A planned compensation scheme is expected to cost between £120 million and £350 million, excluding administrative costs.

While earlier documents suggested the Afghanistan Response Route could help up to 25,000 people over five more years at a projected cost of £7 billion a recent review said the scale of the scheme may be “disproportionate” to the actual threat posed by the data exposure.

The Arap scheme, launched in April 2021, closed to new applicants earlier this month following changes in immigration rules.

(with inputs from Reuters and The Independent)