David Beard, editor-in-chief of Lendingexpert.co.uk, said: “Banks need to invest in updating legacy systems and get to grips with fail-safe technology.”
He continued: “For some people online banking isn’t a choice – they are being forced to use online or app-based banking due to so many branch closures in their area.”
While cash machine withdrawals and card payments aren’t thought to be affected, not being able to log into the app will cause a big headache for lots of people.