A U.S. cybersecurity company says Russian military agents successfully hacked the Ukrainian gas company at the center of the scandal that led to President Donald Trump's impeachment.
Russian agents launched a phishing campaign in early November aimed at stealing the login credentials for employees of Burisma Holdings, the gas company, according to Area 1 Security, a Silicon Valley company that specializes in e-mail security.
Hunter Biden, son of former U.S. vice president and Democratic presidential hopeful Joe Biden, previously served on Burisma's board.
The timing of the operation suggests, however, that the Russian agents could be searching for material that could damage the Bidens.
The House of Representatives impeached Trump in December for abusing the power of his office by enlisting the Ukrainian government to investigate Biden, a political rival, ahead of the 2020 election.