Breaking Bank: How an IT migration corrupted 1.3 billion customer records
Imagine people logging on their bank account and presented not with their own bank accounts but with those of completely different customers. Imagine people seeing their life savings suddenly missing from their account. This is what happened in April 2018, when a series of outages led to the meltdown of TSB’s online banking system, costing the bank £366 million in ‘post-migration charges’ and a big loss of customers. A bill of £153 million was sent to Sabis, the bank’s IT provider, for its role in the crisis. The overall cost of the software failure could increase further if fines are subsequently imposed by regulators.
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