A lot of this is widely reported on by credible news sources. Many current and ex intelligence and defense officials have called out China as the biggest threat to the US over the past year. I can't believe our government is shutdown right now over a "wall" separating us from countries who, in comparison, are our BFFs.
I hope you have your tinfoil hat ready:
https://www.npr.org/2018/10/02/627249909/australia-and-new-z...
https://www.washingtonpost.com/news/josh-rogin/wp/2018/05/22...
https://www.theguardian.com/news/2018/dec/07/china-plan-for-...
Every. Damn. Day.
Particularly at the university, I was setting up a GitLab box that wasn’t supposed to be externalized (didn’t realize at the time that LAN utilizes the public addresses instead of NAT). 90K ssh attacks in 3 days, vast majority from the east Asia area. Luckily none made it through. Learned my lesson (and firewalld) from that experience. Nearly had a panic attack from that (first time setting something up like that).
The above was from my naive days before I started getting more deeply involved in sysadmin and networking work. It’s still incredibly annoying to log in to systems with “There have been 173 failed login attempts since the last successful login.”