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Feds Arrest Programmer for Giving Cryptocurrency Talk in North Korea

Despite warnings from the US government, 36-year-old Virgil Griffith traveled to North Korea in April to give a talk on blockchain technology. Now federal agents claim Griffith may have taught North Korea how to evade US sanctions.

 & Michael Kan Principal Reporter

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Federal agents have arrested a US computer programmer for giving a talk at a cryptocurrency conference in North Korea on blockchain technology.

36-year-old Virgil Griffith is set to appear in court today on the suspected crime of trying to help North Korea circumvent US sanctions. Griffith is known for working on a foundation that supports the Ethereum cryptocurrency. But according to the Justice Department, he also taught attendees at an April conference in North Korea how to use cryptocurrency and blockchain technology to launder money and bypass US sanctions.

"We cannot allow anyone to evade sanctions, because the consequences of North Korea obtaining funding, technology, and information to further its desire to build nuclear weapons put the world at risk," said FBI Assistant Director-in-Charge William Sweeney Jr.

Virgil Griffith

(From Virgil Griffith's website)

Griffith appears to be well aware his trip to the country risked violating US sanctions. Both the US government, and members of the Ethereum Foundation, warned him against attending. Nevertheless, a co-founder of Ethereum claims Griffith did nothing wrong.

"Geopolitical open-mindedness is a *virtue*," Vitalik Buterin tweeted on Sunday. "It's *admirable* to go to a group of people that one has been trained since childhood to believe is a Maximum Evil Enemy, and hear out what they have to say."

According to Buterin, the Ethereum Foundation played no role in helping Griffith go to North Korea. Buterin also says Griffith's talk at the conference focused only on "publicly available info about open-source software." However, the FBI says Griffith still broke the law.

According to the criminal complaint, Griffith originally sought permission from the US State Department to travel to North Korea, but was denied. He only secured a visa to the country by working through an unnamed individual.

The conference itself was attended by about 100 people, some of whom worked for the North Korean government. According to the complaint, a conference organizer told Griffith he should "stress the potential money laundering and sanction evasion applications" of cryptocurrency and blockchain technology during his talk, which he went on to allegedly do. After the conference, Griffith also began creating plans to facilitate cryptocurrency transactions between North Korea and South Korea, knowing that it would violate US sanctions.

Whether North Korea actually gained anything from Griffith's talk is unclear. But the country's interest in cryptocurrency is no surprise. The technology runs outside of the world's financial system, which North Korea has lost access to, thanks to US sanctions. As a result, the country's government has likely been using hackers to steal funds from cryptocurrency exchanges and banks across the world.

If convicted, Griffith faces up to 20 years in prison.

About Our Expert

Michael Kan

Michael Kan

Principal Reporter

My Experience

I've been a journalist for over 15 years. I got my start as a schools and cities reporter in Kansas City and joined PCMag in 2017, where I cover satellite internet services, cybersecurity, PC hardware, and more. I'm currently based in San Francisco, but previously spent over five years in China, covering the country's technology sector.

Since 2020, I've covered the launch and explosive growth of SpaceX's Starlink satellite internet service, writing 600+ stories on availability and feature launches, but also the regulatory battles over the expansion of satellite constellations, fights with rival providers like AST SpaceMobile and Amazon, and the effort to expand into satellite-based mobile service. I've combed through FCC filings for the latest news and driven to remote corners of California to test Starlink's cellular service.

I also cover cyber threats, from ransomware gangs to the emergence of AI-based malware. In 2024 and 2025, the FTC forced Avast to pay consumers $16.5 million for secretly harvesting and selling their personal information to third-party clients, as revealed in my joint investigation with Motherboard.

I also cover the PC graphics card market. Pandemic-era shortages led me to camp out in front of a Best Buy to get an RTX 3000. I'm now following how the AI-driven memory shortage is impacting the entire consumer electronics market. I'm always eager to learn more, so please jump in the comments with feedback and send me tips.

The Best Tech I've Had:

  • My first video game console: a Nintendo Famicom
  • I loved my Sega Saturn despite PlayStation's popularity.
  • The iPod Video I received as a gift in college
  • Xbox 360 FTW
  • The Galaxy Nexus was the first smartphone I was proud to own.
  • The PC desktop I built in 2013, which still works to this day.

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