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Russia Hacked Ukrainian Satellite Communications, Officials Believe
March 28, 2022
March 25, 2024
The attacks on the Electoral Commission took place in August 2021 but were only revealed last year.
Several MPs and peers who have been critical of Beijing are thought to have also been targeted in cyber-attacks.
Deputy Prime Minister Oliver Dowden will address Parliament on Monday about the threat.
The BBC understands other Western nations will set out similar concerns.
Acknowledging the attacks last August, the Electoral Commission said unspecified "hostile actors" had gained access to copies of the electoral registers and broken into its emails and "control systems", but added that it had neither had any impact on any elections nor anyone's registration status.
It is now thought that Mr Dowden will suggest those behind the attack had links to Beijing, as well as laying out how the UK will respond to what it deems a wider threat.
Publicly identifying the attackers lays the groundwork for potential legal and political actions, such as sanctions or diplomatic protests.
Linking the attackers to China, a fellow member of the UN Security Council, would be an escalation in the diplomatic tension between the two countries.