SolarWinds Hackers Accessed US Justice Department Email Systems in Significant Breach

The scale of the hack at the Department of Justice was not immediately clear but it could be substantial.

By Reuters | Updated: 7 January 2021 09:55 IST

SolarWinds Hackers Accessed US Justice Department Email Systems in Significant Breach

Cyber-security experts have said a full recovery from the breaches could take months - or even longer

Highlights

Justice Department had no indication any classified system were impacted
Justice spokesman declined to say how many mailboxes were breached
Russia has denied responsibility for the hacking campaign

The US Department of Justice said on Wednesday its email systems were accessed by the hackers who broke into software company SolarWinds, another indication of the gravity of the breach that has shaken Washington.

The scale of the hack at the Department of Justice was not immediately clear but it could be significant. The department, which has more than 1,00,000 employees across a series of law enforcement agencies, including the FBI, the Drug Enforcement Administration, and the US Marshals Service, said in a statement that 3 percent of its Office 365 mailboxes were potentially accessed.

The statement went on to say that the Justice Department had no indication any classified systems were impacted but Leo Taddeo, who formerly led the cyber division of the FBI's New York office, said the haul could still yield an intelligence bonanza.

Russia 'Likely' Behind SolarWinds Hack: US Intelligence

"It's still very bad if they got the contents of 3,000 accounts," said Taddeo, who now works as the chief information security officer for data center firm Cyxtera Technologies.

He said unclassified emails still carried a wealth of information about incoming tips, pending indictments and international anti-corruption operations, among other things.

"They don't need to have our classified secrets in order to do great damage," he said.

Microsoft Says SolarWinds Hackers Viewed Internal Source Code

Justice spokesman Marc Raimondi declined to say how many mailboxes were breached.

The statement said the Justice Department's Office of the Chief Information Officer discovered the breach on the day before Christmas - nearly two weeks after Reuters first reported that hackers suspected of acting on Russia's behalf had broken into US government networks.

Russia has denied responsibility for the hacking campaign, which has been described as one of the most sophisticated operations uncovered in years. Cyber-security experts have said a full recovery from the breaches could take months - or even longer.

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