Case study In 2018, TSB Bank launched a new system without proper testing because they couldn’t get access to realistic test data in time. As a result, they: – lost 1.3 billion customer records – paid more than £300m in compensation – left 2 million customers without online banking – resulting in the loss of 80,000 customers The CEO was forced to resign. © 2020 Hazy Limited. Private & confidential.