Alleged Russian hackers stole thousands of emails from State Department employees.
Citing two unnamed congressional sources with knowledge of the intrusion, the newspaper said it was the second known hack of a State Department email server in a decade.
According to Politico, the hackers accessed the emails of the Bureau of European and Eurasian Affairs and the Bureau of East Asian and Pacific Affairs.
Apparently, the hackers did not gain access to the classified network, a third official said.
It is unclear, the newspaper said, whether the theft of the correspondence was part of a spying campaign in which Russian hackers infiltrated federal and private networks using software developed by SolarWinds, which is used by both the public and private sectors.
Responding to questions from Politico about the hacking attack, a State Department spokesman said that the agency “takes its data protection responsibilities seriously” and is taking appropriate measures at all times.
“For security reasons, we cannot discuss the nature or extent of any alleged cybersecurity incidents at this time,” the State Department spokesman said.