An NS&I customer has reached out to the provider after their suspicions were raised as they tried to log in to their account.

The individual got in touch over X to ask: “If you insist on 2FA [two factor authorisation] to log in online, why don’t you make phone number a mandatory field when registering?

“I’ve just registered, tried to log in, been told I need to ring you to get a number added, rang, fought the virtual assistant, got put through to someone who was on a terrible phone line, who…