Last year, some 107,000 ATO impersonation scam calls were reported to the authorities. The real number is likely to be much higher, given that most of these type of calls go unreported. Scammers are increasingly using technological advances to appear more legitimate and nab unsuspecting victims.
One technique commonly used is “spoofing”, where scammers use software to mislead the caller ID technology on mobile phones and modern fixed line phones. Rather than transmitting the actual, typically overseas, phone number the call is coming from, the software “overstamps” it with another phone number. Commonly, the numbers used are widely publicised, such as the legitimate numbers used by the ATO.
Due to the prevalence of these scams and the large amount of money lost by individuals, Australian telcos, the ATO and the Australian Communications and Media Authority (ACMA) recently collaborated on a three-month trial of technology to block scam calls appearing to originate from legitimate ATO phone numbers. Under the Scam Technology Project, participating telcos used software to identify calls which had been “overstamped” with specified ATO phone numbers and blocked them.
According to the government, the trial has been “highly successful” in blocking spoof calls from specified ATO numbers. While this blocking technology will not stop scammers randomly ringing Australians pretending to be from the ATO, it will stop specific ATO numbers appearing in the caller ID on the recipient’s phone, making the scam seem less convincing.