Is it possible to create a password protected folder?

Gary Goldblum wrote:

Can this be done on an older OS (High Sierra)??

Yes, HOW TO CREATE ENCRYPTED DISK IMAGES WITH DISK UTILITY TO PROTECT PRIVATE DATA provides instructions. I recommend that for maximum protection, you do not use the “Remember password in my keychain” option.

I use FileWard for this...

https://www.northernsoftworks.com/fileward.html

Gary Goldblum Said:

"Is it possible to create a password protected folder? Hi, I have a few things on my computer (taxes, health records, ect) that I want in a password protected folder. Is this possible? The only way I know how to do it is by using something like Toast and then to create a password protected DVD... which are going out of style. Can this be done on an older OS (High Sierra)??"

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Encrypting the Folder:

Using a Mac to perform this, you would create a password-protected folder, by encrypting it. Whenever someone attempts to open the file, they will be prompted to enter a password. You can burn this to a DVD, if desired.

How to Do So:

1. Select: all applicable items
2. Right-Click: on one item
3. Select: Compress "[folder name]"

Screenshot:

Gary Goldblum Said:

"So you have to compress a folder in order to password protect files? Can you edit/add items once it has been created? I guess there is no way to password protect just a folder without compressing it?"

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Password Protect a File:

Not necessarily. Yes, you can protect a file itself - but particular file-types only.

Go Here: Protect a Document with a Password - Microsoft Help