He worked extensively on the Ethereum cryptocurrency platform, designed the Tor2web proxy along with Aaron Swartz, and created the Wikipedia indexing tool WikiScanner.

[4] On April 12, 2022, Griffith was sentenced to 63 months imprisonment for assisting North Korea with evading sanctions and is currently in a federal low-security prison in Pennsylvania.

At Interz0ne 1 in 2002, he met Billy Hoffman, a Georgia Tech student, who had discovered a security flaw in the campus magnetic ID card system called "BuzzCard".

[23] On August 14, 2007, Griffith released a software utility, WikiScanner, that tracked Wikipedia article edits from unregistered accounts back to their originating IP addresses and identified the corporations or organizations to which they belonged.

Griffith agreed to participate, despite being denied application for special validation he required to attend by the US State Department, and the resulting need for him to take an unusual route to enter the country.

[32] Over five initial days of tours including local businesses and a foreign language school that had little or no connection to cryptocurrency, the conference itself began at Pyongyang's Sci-Tech Complex, which the delegates observed to contain technology largely obsolete in the rest of the world.

The speakers were presented with brief instructions on topics approved for discussion which appeared to have been sourced from the internet, was already in the public domain, and so seemed insufficient to justify holding a conference.

Since approximately 2010, North Korea is believed to have funded many of its weapons programs and the luxury lifestyles of its leadership through cybercriminal activities including the Lazarus Group.