Technology

You are obviously aware that "we" do it all the time as well - but no sane intelligence agency will go out shouting in press "WE DID STEAL CHINESE OFFICIALS' EMAIL FOLKS, OUR AGENTS ARE TOP CYBERCOMMANDOS AMD LAST WEEK WE TOOK OVER A COMPUTER IN IRAN AND RECORDED THEIR MINISTER'S SECRET MEETING" Though actually Americans did go out shouting once recently, calling out Russia before they invaded Ukraine and making sure everyone gets the message "we know what russia is up to and we're ready". It was considered an extraordinary strategy when the sitting US president effectively broadcasted military intel.

None of what you've described will control China's behavior. The window of opportunity to effectively manage their belligerence was closed shortly after we allowed them into the WTO, which was when we had greater leverage to shoehorn their development than we do now.

Right now we can only manage to have a marginal impact on their behavior with the tools we have now. Everything else is just a waiting game until our economies can adjust and de-risk while looking for more market disruptions with which we can gain an edge over China.

If you really care enough about this, there are plenty of tools to which you can use to gain essential knowledge into cybersecurity and other critical technology sectors, and learn yourself into the field of information security.

How do you politically pressure them exactly? Other countries you might threaten to cut off aid or recind arms deals or refuse plane sales, etc. China doesn't rely on any of those things. In fact Boeing relies on China to buy planes to stay profitable. How are you supposed to sanction your 3rd largest trading partner which your first and second partner also relies on. The allies would either revolt or the global economy goes into depression.