Britain's biggest banks have experienced their IT systems failing for an entire month's worth of hours over the past two years — and new research suggests the problem is accelerating into 2026.
Data published by the Treasury Committee revealed that nine of the UK's largest banks and building societies accumulated at least 803 hours of unplanned IT outages between January 2023 and February 2025. That amounts to more than 33 days during which millions of customers could not access their money.
