Bank account holders have faced significant disruptions with the Halifax banking app, starting around 11 AM. Users reported issues accessing their accounts from various locations across the UK, including London, Birmingham, Leeds, and Liverpool. Downdetector indicated that 67% of users experienced problems with the app, 13% had login issues, and 10% faced difficulties with fund transfers. The Halifax app acknowledged the technical problems, advising customers that they may be logged out and suggesting they try logging in again later. User reports of issues began surfacing at 6:32 AM EDT.