Ability to lock channels with pin codes

Would be awesome to see this feature someday. Basically, server owner can lock channel with a pin code (maybe private messages too (user needs to enter pin which he/she sets every time he/she wants to read a protected chat), which would require user to enter set pin everytime in order to read messages in protected channel.

Why? Because some users keeps pretty confidential info/files in discord channels and in some cases (for example, your discord profile is stolen) this could be a disaster.