How can I password protect a folder in Mac?

1. Password Protect Folders

1. In Disk Utility, go to File > New Image > Image from Folder…
2. Now, select the folder you want to password protect. …
3. You can save this new folder as anything you want. …
4. Password Protect Files. …
5. Click the padlock icon and select Lock Note. …
6. Click Set Password.