https://www.theregister.co.uk/2018/07/06/banks_told_everyone_knows_your_systems_will_fail_show_us_your_backup_plan/

Banks were today told to assume there will be problems with systems and to work on their backup plans following a series of failures caused by increasing reliance on technology.

In a joint paper, the UK's Financial Conduct Authority and the Bank of England's Prudential Regulation Authority said that operational resilience failures pose a risk to vital services, consumers and the firms themselves.