Citibank accidentally wired $500m back to lenders in user-interface super-gaffe – and judge says it can’t be undone



A judge has ruled that Citibank can’t claw back more than $500m (£360m) it mistakenly paid out after outsourced staff and a senior manager made a nearly billion-dollar (£700m) user-interface blunder.

The error occurred on August 11 last year, when Citibank was supposed to wire $7.8m (£5.6m) in interest payments to lenders who are propping up troubled cosmetics giant Revlon. But a worker at outsourcing mega-org Wipro accidentally checked the wrong combination of on-screen boxes, leading to the repayment of not only the interest but also the $894m (£640m) principal from the bank’s funds.

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