Lloyds Banking Group customer data exposed after Lloyds Banking Group breach
Data Leak
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Lloyds Banking Group exposed customer personal data through a software defect in a mobile banking update, affecting up to 447,936 customers and briefly revealing other users' account information. The exposure touched transactions, account details, payment references and national insurance numbers across Lloyds, Halifax and Bank of Scotland apps. The issue stemmed from an overnight system update on 12 March and was reported to regulators. No evidence of financial loss or fraud was identified, but the leak created privacy and identity risk.
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Timeline
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30.03.2026 17:00 2 articles · 1mo ago
Lloyds Banking Group data exposure during system update
Initial DisclosureA software defect in an overnight system update on 12 March exposed personal data for up to 447,936 Lloyds Banking Group customers across Lloyds, Halifax and Bank of Scotland mobile banking apps, briefly allowing some users to see other customers' transactions, account details, payment references and national insurance numbers. Lloyds said the defect was introduced during a routine IT update and that the incident was reported to the FCA on the morning of 12 March and to the ICO within 72 hours.
Show sources
- Lloyds IT Glitch Exposed Data of Nearly 500,000 Banking Customers — www.infosecurity-magazine.com — 30.03.2026 17:00
- Lloyds Data Security Incident Impacts 450,000 Individuals — www.securityweek.com — 31.03.2026 13:07