Caller-ID Spoofing: 'Appallingly Bad Idea' . "A new software system that allows users to fool telephone caller-ID into displaying false numbers opens the door to a variety of abuses. "What an appallingly bad idea," says Graham Cluley of security firm Sophos. A startup company has developed a software system that allows users to spoof a caller-ID number in order to trick the telephone-call recipient into answering the phone. . . "
Comment: Caller ID evidence has been used in a number of cases - another reason why authentication will become increasingly important.