Treasury Committee finds nine top banks had at least 33 days of outages over two years

The Treasury Committee has written to Lloyds Banking Group about an IT glitch that affected some of its customers, the Committee said on 17 March 2026¹. On Thursday 12 March, it was reported that some customers of Lloyds Banking Group were able to see information related to other people's accounts through their banking app¹.

The Chair of the Treasury Committee, Dame Meg Hillier, said the incident appears to be an "alarming breach of confidentiality" and sought further clarity on what happened¹. The letter requests information including the number of affected customers, expected compensation payouts and the nature of the information which became visible¹.

The Committee said that further updates have been requested one month after Lloyds' first reply and in six months' time¹. The Committee has not published Lloyds' response, and the number of affected customers, the nature of the information visible and any compensation figures have not been reported¹.

The letter follows the Committee's earlier finding, published last March, that nine of the top banks had accumulated at least 33 days' worth of outages over the preceding two years¹. That finding covered major banks and building societies, which are authorised and supervised under the UK's banking regulation framework.

Why it matters for households

The incident concerns customers of Lloyds Banking Group, one of the largest providers of current accounts and savings in the UK. Where account information belonging to one customer becomes visible to another, the practical questions for those affected are what data was seen, how many people were involved and whether any compensation follows. None of those figures has been reported¹.

The Committee's earlier finding is separate but relevant to the same subject: outages at major banks and building societies mean customers can be unable to make payments, check balances or move money for periods of days, not minutes. The 33 days figure is a cumulative total across nine institutions over two years, not a single continuous failure¹.

The Committee has asked for updates at one month and six months after Lloyds' first reply, so any further detail on affected customers and compensation would emerge on that timetable¹. The Committee has not said what action, if any, it might take beyond requesting information¹.

What happens next

Lloyds Banking Group is expected to reply to the Committee's letter. The Committee has requested a further update one month after that first reply and another in six months' time¹. The Committee has not published a deadline for the initial response¹.

The wider question of IT resilience at banks and building societies remains within the Committee's regulation and policy remit, following its finding on outages across nine institutions¹.