ByteDance intern fired for planting malicious code in AI models

After rumors swirled that TikTok owner ByteDance had lost tens of millions after an intern sabotaged its AI models, ByteDance issued a statement this weekend hoping to silence all the social media chatter in China.

In a social media post translated and reviewed by Ars, ByteDance clarified “facts” about “interns destroying large model training” and confirmed that one intern was fired in August.

According to ByteDance, the intern had held a position in the company’s commercial technology team but was fired for committing “serious disciplinary violations.” Most notably, the intern allegedly “maliciously interfered with the model training tasks” for a ByteDance research project, ByteDance said.

None of the intern’s sabotage impacted ByteDance’s commercial projects or online businesses, ByteDance said, and none of ByteDance’s large models were affected.

Online rumors suggested that more than 8,000 graphical processing units were involved in the sabotage and that ByteDance lost “tens of millions of dollars” due to the intern’s interference, but these claims were “seriously exaggerated,” ByteDance said.

The tech company also accused the intern of adding misleading information to his social media profile, seemingly posturing that his work was connected to ByteDance’s AI Lab rather than its commercial technology team. In the statement, ByteDance confirmed that the intern’s university was notified of what happened, as were industry associations, presumably to prevent the intern from misleading others.

ByteDance’s statement this weekend didn’t seem to silence all the rumors online, though.

One commenter on ByteDance’s social media post disputed the distinction between the AI Lab and the commercial technology team, claiming that “the commercialization team he is in was previously under the AI Lab. In the past two years, the team’s recruitment was written as AI Lab. He joined the team as an intern in 2021, and it might be the most advanced AI Lab.”