Before transferring any money, it’s always best to think twice. That’s the lesson American bank Citigroup learned the hard way in 2020, as they mistakenly transferred almost $900 million to creditor investment funds owned by the Revlon Group. The bank has since recovered half that amount, but the financial authorities still fined them $400 million for “poor risk management”. And given the creditors could rightfully claim they’d only received money that was rightfully owed to them eventually anyway, Citigroup is unlikely to claw any more of the money back. A judge confirmed this in 2021.