Dominic Cummings makes China claim amid scrutiny over UK national security
Home secretary challenged over government's handling of Chinese spying trial collapse
Dominic Cummings claimed China breached high-level UK security systems, obtaining "vast amounts" of classified government information, including highly sensitive "Strap material".
He stated that fundamental infrastructure for transferring sensitive data within the British state was compromised for "years".
Cummings and the then-prime minister Boris Johnson were informed of the breach in 2020, and he is willing to provide details to MPs if an inquiry is launched.
These claims emerge amidst scrutiny over national security and UK policy towards China, following the recent collapse of a China spying case trial.
Cummings criticised the Crown Prosecution Service's stance that government evidence did not define China as a national security threat, calling it "puerile nonsense".