Category Archives: SIM Swapping

Who Owns Your Wireless Service? Crooks Do.

August 7, 2019

Incessantly annoying and fraudulent robocalls. Corrupt wireless company employees taking hundreds of thousands of dollars in bribes to unlock and hijack mobile phone service. Wireless providers selling real-time customer location data, despite repeated promises to the contrary. A noticeable uptick in SIM-swapping attacks that lead to multi-million dollar cyberheists.

If you are somehow under the impression that you — the customer — are in control over the security, privacy and integrity of your mobile phone service, think again. And you’d be forgiven if you assumed the major wireless carriers or federal regulators had their hands firmly on the wheel.

The Unsexy Threat to Election Security

July 25, 2019

Much has been written about the need to further secure our elections, from ensuring the integrity of voting machines to combating fake news. But according to a report quietly issued by a California grand jury this week, more attention needs to be paid to securing social media and email accounts used by election officials at the state and local level.

Nine Charged in Alleged SIM Swapping Ring

May 10, 2019

Eight Americans and an Irishman have been charged with wire fraud this week for allegedly hijacking mobile phones through SIM-swapping, a form of fraud in which scammers bribe or trick employees at mobile phone stores into seizing control of the target’s phone number and diverting all texts and phone calls to the attacker’s mobile device. From there, the attackers simply start requesting password reset links via text message for a variety of accounts tied to the hijacked phone number.

All told, the government said this gang — allegedly known to its members as “The Community” — made more than $2.4 million stealing cryptocurrencies and extorting people for restoring access to social media accounts that were hijacked after a successful SIM-swap.

Why Phone Numbers Stink As Identity Proof

March 17, 2019

Phone numbers stink for security and authentication. They stink because most of us have so much invested in these digits that they’ve become de facto identities. At the same time, when you lose control over a phone number — maybe it’s hijacked by fraudsters, you got separated or divorced, or you were way late on your phone bill payments — whoever inherits that number can then be you in a lot of places online.

More Alleged SIM Swappers Face Justice

February 6, 2019

Prosecutors in Northern California have charged two men with using unauthorized SIM swaps to steal and extort money from victims. One of the individuals charged allegedly used a hacker nickname belonging to a key figure in the underground who’s built a solid reputation hijacking mobile phone numbers for profit.

According to indictments unsealed this week, Tucson, Ariz. resident Ahmad Wagaafe Hared and Matthew Gene Ditman of Las Vegas were part of a group that specialized in tricking or bribing representatives at the major wireless providers into giving them control over phone numbers belonging to people they later targeted for extortion and theft.

“Stole $24 Million But Still Can’t Keep a Friend”

January 15, 2019

Unsettling new claims have emerged about Nicholas Truglia, a 21-year-old Manhattan resident accused of hijacking cell phone accounts to steal tens of millions of dollars in cryptocurrencies from victims. The lurid details, made public in a civil lawsuit filed this week by one of his alleged victims, paints a chilling picture of a man addicted to thievery and all its trappings. The documents suggest that Truglia stole from his father and even a dead man — all the while lamenting that his fabulous new wealth brought him nothing but misery.

Bug Bounty Hunter Ran ISP Doxing Service

November 9, 2018

A Connecticut man who’s earned “bug bounty” rewards and public recognition from top telecom companies for finding and reporting security holes in their Web sites secretly operated a service that leveraged these same flaws to sell their customers’ personal data, KrebsOnSecurity has learned.

Busting SIM Swappers and SIM Swap Myths

November 7, 2018

KrebsOnSecurity recently had a chance to interview members of the REACT Task Force, a team of law enforcement officers and prosecutors based in Santa Clara, Calif. that has been tracking down individuals engaged in unauthorized “SIM swaps” — a complex form of mobile phone fraud that is often used to steal large amounts of cryptocurrencies and other items of value from victims. Snippets from that fascinating conversation are recounted below, and punctuated by accounts from a recent victim who lost more than $100,000 after his mobile phone number was hijacked.

U.S. Mobile Giants Want to be Your Online Identity

September 12, 2018

The four major U.S. wireless carriers today detailed a new initiative that may soon let Web sites eschew passwords and instead authenticate visitors by leveraging data elements unique to each customer’s phone and mobile subscriber account, such as location, customer reputation, and physical attributes of the device. Here’s a look at what’s coming, and the potential security and privacy trade-offs of trusting the carriers to handle online authentication on your behalf.