I'm sorry, you are obviously operating under the obsolete idea that security services exist to ensure that government activity is secure.
That is last-millennium thinking.
These days, security services are there to ensure the government that the people they govern are happy and complacent and won't come with pitchforks to put their heads on a spike. To ensure that, their job is to listen to everybody, scrape all social networks and record every tweet to ensure that pubic ire is directed to the acceptable scapegoats (immigrants, foreigners, the French, arabes, asians, etc).
Therefor, the GCHQ is perfectly happy with the Chinese being able to listen in to UK gov meetings, since they will get the information anyway through Huawei 5G routers that have yet to be installed.
Ah, the miracles of technology have no bounds.
Biting the hand that feeds IT
