The ABC can reveal more than 31,000 passwords belonging to Australian customers of the big four banks are being shared amongst cyber criminals online, often for free. The credentials were stolen from the personal devices of more than 14,000 Commbank customers, 7,000 ANZ customers, 5,000 NAB and 4,000 Westpac customers, using a specific kind of malware known as an 'info-stealer'. The discovery comes in the wake of recent attacks on Australian superannuation funds, where stolen passwords were used to try to gain access to members' accounts.
