Russian hacker Yevgeniy Nikulin is guilty of hacking the social media platform LinkedIn and Dropbox in 2012. That was determined by an American jury on Friday evening.

The hack exposed the data of 100 million LinkedIn users, one of the biggest data thefts in American history. It took the jury just hours to reach a decision, Bloomberg reports .

Nikulin was arrested in Prague in October 2016. He was subsequently extradited to the United States and was subsequently held in pretrial detention for years.

Actually, the ruling in the case was supposed to come in March, but it was temporarily suspended due to the corona crisis. Because he had been detained for so long, a US judge decided to reopen the case first in the multi-state legal district.

See also: Suspected of major LinkedIn hack for years: Russian is in court

Nikulin will hear what his punishment will be in September. He can be sentenced to ten years in prison.