The first employee had to go through a rarely-used back-up screen following another system’s fault to send $280 (€269) to a client’s account. One quirk of the rarely-used screen was that the ...

Citigroup credited $81 trillion to a customer’s account, instead of just $280, and took hours to reverse the transaction — an embarrassing “near miss” for a bank that has struggled to fix ...

An error almost led to a Citigroup account being credited with $81tn (€77.8tn) - an amount that is about 5 times the total wealth of the UK, which was estimated at ...