Raspberry Pi just made a big change to boost security

The first thing that crossed my brain after reading the title was:

"It's almost impossible to buy a new one. How you improve the security of something you can never get access to?"

Didn't realize how frustrated I was with their perpetual lack of stock for Pi4 until now. Wow!

On topic: I am really happy they are taking security seriously. That is a genuine improvement, and a trend that I wish more vendors took seriously.