Security sources said that when doing an online transaction, the syndicate usually needed the account’s username, password and TAC numbers. (TAC numbers are six-digit numbers sent to the registered account owner’s mobile phone for verification.) “To get the TAC numbers, the syndicate members would contact the genuine account holder and dupe him into revealing the TAC numbers via phone. The sources cited a case of a genuine account holder who was duped up to six times into revealing his TAC number in one day. “Never reveal your personal online banking details, including TAC numbers, to anyone on the phone.

Source: The Star January 05, 2019 23:37 UTC