macOS unable to open any non-Apple application

Unbelievable. When I read the tweet (tried to post here as well), I suddenly realized why my Mac was unresponsive an hour ago.

Here is another tweet that describes the problem in more detail:

https://mobile.twitter.com/llanga/status/1326989724704268289

> I am currently unable to work because macOS sends hashes of every opened executable to some server of theirs and when `trustd` and `syspolicyd` are unable to do so, the entire operating system grinds to a halt.

EDIT:

As others pointed out, I put this to my `/etc/hosts` file and refreshed it like so:

    sudo emacs /etc/hosts # add `0.0.0.0 ocsp.apple.com` 
    sudo dscacheutil -flushcache; sudo killall -HUP mDNSResponder # refresh hosts

I started panicking mildly thinking my drive was failing or something.

And just before this, I finally managed to fix Spotlight pegging one core at 100% constantly. Next thing, I reboot into a laggy system. macOS is my favorite OS, but the shit I put up with... it's basically an abusive relationship at this point.

I never have problems with the new MacOS or iOS. The trick is to just wait for the X.1 update.

This is happening to Macs running Catalina and Mojave, not just those that upgraded to BigSur.