I'd love to learn more about what's explicitly whitelisted, and can't be blocked by DWS or other on-system resources. I've tried Googling, but it's hard to fin

I'd love to learn more about what's explicitly whitelisted, and can't be blocked by DWS or other on-system resources. I've tried Googling, but it's hard to find pages which discuss it without knowing the right terms to search by. Can you help provide a link so I can learn more?