Anatoliy Kovalev was one of 12 Russian intelligence officers indicted by the special counsel in July of 2018.
All of the indicted individuals worked for the Russian military intelligence agency, GRU. They were accused of interfering in the 2016 presidential election by stealing and releasing documents from the DNC and DCCC through Guccifer 2.0 and DNCLeaks.
Kovalev was a GRU officer whose job was to hack into the computers of people and businesses involved in the 2016 election, such as state boards of elections, secretaries of state, and election software companies. He hacked into at least one state’s voter database and obtained the personal information of 500,000 voters.
The constitution of Russia doesn’t allow extradition so it’s unlikely any of these people will be brought to justice.