- Lloyds Banking Group
- 27 March 2026 10:34:41
Source: Sharecast
The incident, which occurred on 12 March, affected 447,936 customers across the group’s Lloyds, Halifax and Bank of Scotland brands after a software defect during an overnight update caused a breach in the bank’s mobile app systems, according to Reuters.
Customers were able to see transactions belonging to other users, with some potentially exposed data including account details, national insurance numbers and payment references.
Around 114,000 customers clicked on the transactions, allowing them to view more detailed personal information, while the Treasury Select Committee said the issue could also have exposed data relating to customers at other banks, according to the Financial Times.
The committee had requested further updates from Lloyds within one month and again after six months, Reuters said.
Lloyds had paid £139,000 in compensation to 3,625 customers for distress and inconvenience, with no evidence of financial loss or fraud linked to the incident so far.
It said the issue was quickly identified and resolved, with affected customers contacted.
The breach had drawn scrutiny from regulators, including the Financial Conduct Authority, the Prudential Regulation Authority and the Information Commissioner's Office, all of which had been notified.
At 1015 GMT, shares in Lloyds Banking Group were down 1.65% at 90.8p.
Reporting by Josh White for Sharecast.com.