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US cyber-attack: US energy department confirms it was hit by Sunburst hack

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The US energy department is the latest agency to confirm it has been breached in what is being described as the worst-ever hack on the US government.

The department is responsible for managing US nuclear weapons, but said the arsenal’s security had not been compromised.

Tech giant Microsoft also said on Thursday that it had found malicious software in its systems.

Many suspect the Russian government is responsible. It has denied any role.

The US treasury and commerce departments are among the other targets of the sophisticated, months-long breach, which was first acknowledged by officials on Sunday.

Researchers, who have named the hack Sunburst, say it could take years to fully comprehend what is one of the biggest ever cyber-attacks.

President Donald Trump is yet to comment on the cyber-attacks.

Meanwhile, US President-elect Joe Biden has vowed to make cyber-security a “top priority” of his administration.

“We need to disrupt and deter our adversaries from undertaking significant cyber-attacks in the first place,” he said.

“We will do that by, among other things, imposing substantial costs on those responsible for such malicious attacks, including in co-ordination with our allies and partners.”

America’s top cyber agency, the Cybersecurity and Infrastructure Agency (Cisa), gave a stark warning on Thursday, saying that addressing the intrusion would be “highly complex and challenging”.

It said “critical infrastructure” had been damaged, federal agencies and private sector companies compromised, and that the damage posed a “grave threat”.

The hack began in at least March 2020, and those responsible had “demonstrated patience, operational security, and complex tradecraft”, the Cisa said.

The agency did not identify what information had been stolen or exposed.

Addressing the attack on the energy department, spokeswoman Shaylyn Hynes confirmed it was responding to a cyber-breach – but said “the malware has been isolated to business networks only”.

She said security functions at the National Nuclear Security Administration (NNSA), which oversees US nuclear weapons, had not been affected.

“There’s a lot we don’t yet know, but what we do know is a matter of great concern,” Mr Biden has said.

Hackers are known to have at least monitored data within a range of key US government departments including state, defence, homeland security, treasury and commerce, Reuters news agency reports.

Cisa said the perpetrators managed to breach computer networks using network management software made by the Texas-based IT company SolarWinds.

Up to 18,000 SolarWinds Orion customers downloaded updates containing malicious software installed by hackers.

All US federal civilian agencies were told to remove SolarWinds from their servers earlier this week as a result.

Cisa said it was investigating “evidence of additional access vectors, other than the SolarWinds Orion platform”.

Microsoft said it had identified more than 40 of its customers who were targeted in the cyber-attack, including government agencies, think tanks, non-governmental organisations and IT companies. About 80% of these were in the US, while others were in Canada, Mexico, Belgium, Spain, the UK, Israel and the UAE.

BBC

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