See You can also password-protect document inside of apps such as Pages, Numbers, Keynote, Microsoft Word, etc. You can also create a password protected disk image. With the folder open and not active, right-click it from its parent folder, select Get Info and check the box for Locked. You can put them in an encrypted zip file. An open folder With the folder open and active, click File > Get Info from the menu bar and check the box for Locked in the window.

Files and folders on iCloud drive are still just files and folders. Download files from internet: tap the browser icon to download files from the web to your iPhone and save them in the data locker app. So you can see all the file names, but must enter a password to. If you still think you need to put another layer of protection on those files, like maybe you have an assistant that also has access to your iCloud password, then you can do the same things you do with any files. Transfer files from computer to iPhone: tap the Transfer button to turn on Web Server option to transfer files from your PC/Mac to iPhone over Wi-Fi. You can create a 7-Zip file (It acts like a directory) and password protect all the files in it. So think about how anyone else would get to see any of your files in iCloud Drive. You can see them on your Mac with your user account password and your iOS devices in the Files app, but that is protected by your passcode and/or Touch ID or Face ID.

There's no way for Apple to read them and no way for anyone else to get to them without your iCloud password. Your files in iCloud Drive are already encrypted.

How to add password to folder mac