How to Change the Entry Point in TYPO3 v13

As we look to the upcoming v13 release on October 15, we’re providing an additional key feature that addresses a critical issue: security. With the new release, the backend entry point can be changed with support for subdomain as well.
BE Entry Point Blog: typo3.com/blog...

[@SebastianFischer]

Great explanation of a topic near to my heart. Need to discuss this with my colleges if it's worth a shot, given that we have about 200 editors.