"Though if you choose to defer security updates for 30 days getting your PC bricked could be the last of your worries."
Paranoia. The vast majority of security issues are related to users running things they shouldn't run. I have yet to see a single virus detected (or stopped at any stage) by MS defender (or whatever it's called) on my machine.
Being bricked is sort of bad. Oh, Windows is saying it wants to update right now, as I type this! It doesn't say for how long it will disable my machine whilst updating. Nor any hint of the purpose of this update, or the extent of it. Typical arrogant MS.
As I was planning to actually use the PC right now, I think I'll just tell Windows Update to eff off.