The Chinese government has been accused of "systematic cyber sabotage" in statements by the UK, US, NATO, and European Union.
The British government is confirming that it believes Chinese state-sponsored hackers were responsible for an attack earlier this year which targeted Microsoft Exchange servers.
Foreign secretary Dominic Raab described the attack as "a reckless but familiar pattern of behaviour" from the Chinese government.
He stated that Beijing "must end this systematic cyber sabotage and can expect to be held [to] account if it does not".
The hack of Microsoft Exchange servers earlier this year caused significant concern as the state-sponsored hackers left the victim networks open to additional attacks from criminals.
The Chinese state-sponsored campaign is believed to have indiscriminately compromised tens of thousands of on-premise email servers worldwide with an intention to subsequently target specific victims.
At the time the UK's National Cyber Security Centre, a part of GCHQ, warned businesses to urgently update their email servers to ensure that criminals did not exploit them too.