The 74,000 numbers of Barclays BankThe UK faces an epidemic of telephone scams. Fraudsters are constantly calling people up pretending to be their bank. But how can you be sure the number displayed on your screen in genuine? You can't. The telecom system is hopelessly insecure and shouldn't be trusted for anything more complicated than dialling the speaking clock. Barclays bank knows that customers are worried about this. So they'v
