---
title: TfL Hack Affected 10 Million People in One of Britain's Biggest Data Breaches
description: TfL's data breach exposed 10M customers' info, costing £39M. Discover the details of the hack and its impact on London's transport.
canonical_url: https://codekeeper.co/ticker/tfl-data-breach-2024-hackers-expose-10-million-customers
---

# TfL Hack Affected 10 Million People in One of Britain's Biggest Data Breaches

TfL's data breach exposed 10M customers' info, costing £39M. Discover the details of the hack and its impact on London's transport.

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By Content Team Mar 8, 2026

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Transport for London suffered one of the UK's largest data breaches when hackers from the Scattered Spider crime group stole personal information from around 10 million customers in late 2024. The BBC discovered the true scale after obtaining a copy of the stolen database containing names, addresses, phone numbers, and email addresses. TfL initially said only "some" customers were affected and has never publicly disclosed the full numbers. The attack disrupted online services and cost £39 million in damages, though London transport itself wasn't impacted. Two British teenagers face trial in June for the hack. While TfL emailed over 7 million customers, only 58% opened the notifications, leaving millions unaware their data was stolen. **Source:** [BBC](https://www.bbc.co.uk/news/articles/cz0ggkr2g77o)

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