Spoofed Phone Lines, SIM Swaps and Telecom Insiders: 14 Charged in Alleged $370 Million Bank Account Takeover Ring

Picture a spreadsheet. Nearly 3,000 names. Personal and business details for every one of them. And next to those names, bank balances that add up to more than $373 million.

According to federal prosecutors in Dallas, that spreadsheet was the starting point for a nationwide scheme to take over people's bank accounts. And a big part of the alleged playbook ran through the victims' own phones.

So what happened?

On November 3, 2026, U.S. Attorney Ryan Raybould of the Northern District of Texas announced that a federal grand jury had indicted fourteen defendants in what his office called a sweeping nationwide bank account takeover conspiracy. The defendants include allegedly corrupt insiders at major banking and telecommunication institutions.

The grand jury returned the 22-count indictment on August 26. It was unsealed after the arrest in Florida of Terrence Dudley, a key alleged co-conspirator.

Prosecutors say the leader and chief architect of the alleged conspiracy is Muhamed Dieye, 35, of Dallas. He and his thirteen co-defendants are charged with conspiracy to commit wire fraud and bank fraud, bank fraud, wire fraud and aggravated identity theft.

The U.S. Attorney's Office release is attached: U.S. Attorney's Office release on the Dieye indictment.

Charges are allegations; every defendant is presumed innocent unless and until proven guilty in court.

The phone part

This is why the case landed on my desk.

According to the indictment, from July 2023 through November 2024, the defendants allegedly:

• Obtained personal identifying information.
• Produced and trafficked counterfeit identification documents.
• Impersonated victims.
• Manipulated victims' phone lines by spoofing and SIM swapping.
• Intercepted security codes.
• Used corrupt insiders within banks and telecommunications companies to get around authentication measures.

Read that again! Spoofing. SIM swaps. Intercepted security codes. Insiders at phone companies.

Prosecutors allege that the group accessed or withdrew money from accounts at Truist Bank, Bank of America, First Bank, Woodforest National Bank, JPMorgan Chase Bank and Charles Schwab. They also allegedly conducted or attempted numerous fraudulent transactions, including an attempted $2,000,000 wire to the Emirates Islamic Bank.

The airport gate

And then there's the ending, which reads like a movie.

According to the government's motion to revoke release, Dieye and his family vacated his Dallas home, shipped most of his belongings to Kenya and traveled to New York to board a one-way flight to Malaysia. Within hours, the U.S. Attorney's Office and the Diplomatic Security Service secured an arrest warrant.

The government says that after his boarding pass was scanned, Dieye physically resisted arrest, tried to destroy one of his cell phones and had to be subdued by multiple federal agents. A magistrate court in the Eastern District of New York initially ordered him released on bond, but the government immediately sought and got an emergency stay. Dieye has since been transferred to the Northern District of Texas, where he and several co-defendants are currently held in federal custody awaiting trial.

Why should you care?

Look, I get it. Most of you run call centers, buy leads or send texts. You're not running a SIM swap crew.

But here's the thing ... the phone number has become the master key to people's financial lives. Banks text security codes to it. Customers trust the name on the caller ID. And when bad actors can spoof a number or hijack a line, that trust gets torched for everybody, including the legitimate businesses trying to reach customers by phone.

That's exactly why regulators keep pushing caller ID authentication and why carriers keep tightening the screws on who gets to make calls. Every case like this adds more pressure.

What to do

• Know your caller ID. Use numbers you actually own or have the right to use. Spoofed or borrowed numbers are a huge red flag. Don't do it. Just don't.
• Vet your vendors. If a dialer, carrier or lead partner can't explain how they handle number ownership and authentication, walk away.
• Lock down your own accounts. Ask your carrier about port-out and SIM change protections on your business lines. It's not rocket science.
• Watch the insiders. This case allegedly involved people on the inside. Limit who on your team can touch customer data, and audit access.

What's next

If convicted, the defendants face a maximum of 30 years in federal prison on the bank fraud conspiracy charge and 20 years on the wire fraud conspiracy charge. Aggravated identity theft carries a mandatory two years in prison, consecutive to any other sentence.

The Diplomatic Security Service investigated with substantial help from a long list of partners, including the U.S. Secret Service, U.S. Postal Inspection Service, Homeland Security Investigations, Federal Bureau of Investigation (FBI) and Social Security Administration Office of Inspector General. Assistant U.S. Attorney Michael J. Murtha is prosecuting.

Remember, your phone number is your customers' front door. Keep it honest. That's it.

Source: U.S. Attorney's Office for the Northern District of Texas, Federal grand jury indicts fourteen defendants in $370 million nationwide bank account takeover conspiracy (Nov. 3, 2026).