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A whistleblower has disclosed the Afghan leak inquiry that British authorities left behind sensitive equipment allowing Afghanistan's rulers to locate local individuals who collaborated with western forces.

Data Breach Endangers Thousands at Risk

Person A, called Person A, explained that Afghans affected by the security lapse were instructed to change residences and change their mobile numbers to protect themselves from the Taliban.

Lawmakers are investigating the Conservative government's management of a massive leak of personal details involving nearly 19,000 Afghans who had applied to move to the United Kingdom to escape the regime.

The Information Breach Was Discovered

A data file containing private information, such as names, phone numbers and sometimes family information, was inadvertently disclosed by a worker employed at UK special forces headquarters in early 2022.

The leak became known months later, when the names of multiple applicants who had requested to settle in the UK were posted on social media.

Militant Technology

“There seems to be a false assumption that militant forces do not have the same sort of facilities that western nations possess,” she told lawmakers.

“We left it all behind in Afghanistan; it's in their hands. Should they obtain a contact number, they are able to track you down to within metres. This is exactly how intelligence groups did.”

Under inquiry about whether the Taliban possessed advanced decryption, the source stated: “They have complete capability.”

Consequences of the Data Breach

Early investigations presented to the inquiry indicated that approximately fifty family members and colleagues of people concerned by the leak had been executed.

A legal restriction regarding the incident was put in force in August 2023 and prevented all details regarding the matter from public disclosure until July 2025.

Security Recommendations

Given injunction limitations, the source and the aid group she was working with told individuals at risk they were supporting that they had “apprehensions that mobile communications had been compromised”.

“We advised that they relocate where feasible and altered their phone numbers. These represented the crucial data that, should militant forces acquired such data, would lead to their location being found,” the source testified.

Challenged Assessments

The source contested that an official review carried out by a retired civil servant had been wrong to state that the obtaining of the information by the Taliban was “unlikely to substantially change present danger”.

“The thing to remember is that affected people are in hiding from the Taliban; they remain concealed. The primary issue involves past work history.”

The source explained terrible abuse endured by at-risk Afghans, including electrocution, waterboarding, and physical abuse.

“There are cases of toddlers who have had limbs fractured to force the family to reveal locations,” Person A stated.