International bank transfer system hacked, Swift group admits

World money exchange tells 11,000 financial institutions to update their software after US$81m was stolen from account of Bangladesh central bank

Swift, the global financial network that banks use to transfer billions of dollars every day, has warned its customers it is aware of "a number of recent cyber incidents" where attackers had sent fraudulent messages over its system.

Related: Bangladesh central bank governor resigns over $81m cyber heist