<p>U.S. entrepreneur and cryptocurrency investor Michael Terpin has written an open letter to Ajit Pai, chairman of the Federal Communications Commission (FCC), requesting action on SIM swapping fraud.</p> <p>In the letter, shared with The Block on Monday, Terpin, a victim of SIM swapping himself, described the method of fraud is the “fastest growing cancer” on the mobile consumer landscape, and said it needs to end “quickly and effectively.”</p> <p>To that end, Terpin suggested three remedies to Pai: 1. Mandating all U.S. mobile carriers to hide customer passwords from employees; 2. Mandating all U.S. mobile carriers include a “no port” option, meaning users would have to go through a carrier’s fraud department to transfer their SIM information; and 3. Initiating an “immediate, comprehensive” study (which was done for robocalls) with recommendations for mandatory reforms by carriers.</p> <p>"These first two measures are easy to implement: the first would simply require using a phone keypad to punch in the numbers, something every carrier already uses for other commands, and the second would mandate a policy that some, but not all, carriers already offer,” said Terpin.</p> <p>Last August, Terpin <a href="https://www.theblockcrypto.com/post/33545/court-says-att-sim-hack-plaintiffs-24m-crypto-loss-not-result-of-security-lapse-must-amend-suit">sued</a> AT&amp;T for $224 million after his SIM got swapped by hackers, allegedly resulting in the loss of around $24 million in cryptocurrencies (compensatory damages) and a further $200 million in punitive damages. In response, AT&amp;T filed a motion to dismiss, saying that Terpin had failed to state a claim upon which relief could be granted. A court, in turn, granted Terpin a period to amend his lawsuit.</p> <p>In another case, Terpin had also sued 21-year-old Nicholas Truglia for accessing his funds via a SIM swap hack. Terpin <a href="https://www.theblockcrypto.com/linked/23165/u-s-crypto-investor-wins-75-million-civil-case">won</a> that case as a court ordered Truglia to pay him $75.8 million in compensatory and punitive damages.</p>