![]() In January, A2P texting solutions company Modica received a warning for failing to comply with the rules. The Reducing Scam Calls and Scam Short Messages Industry Code required providers to share threat intelligence about scams and report them to authorities. Last year the Australian Communications and Media Authority introduced new rules for the telecom industry to combat SMS scams by tracing and blocking them. Moreover, telecom providers generally can’t block scam SMS messages due to how difficult it is to distinguish them from genuine messages. There are also no requirements for telecom companies to verify this. ![]() Web portals and apps offering A2P services generally don’t do their due diligence and check whether a sender is the actual owner of the sender ID they’re using. And, of course, they could still impersonate ANZ even if no previous legitimate thread existed, in which case it would show up in a new thread. ![]() In the example above, the scammer would have simply needed to write “ANZ” in the sender ID field for their fraudulent message to show up in the real message thread with ANZ. The problem with A2P messaging is that applications can be used to enter any text or number (or combination) in the sender ID field – and the recipient’s phone uses this sender ID to group messages into threads. ![]() Peer-to-peer (P2P) is what most people use to send messages to friends and familyĪpplication-to-person (A2P) is a way for companies to send messages in bulk through the use of a web portal or application. An example of a scam SMS message ending up in a legitimate message thread. ![]()
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