To encrypt an archive in 7-zip, once you’re at the Add to Archive dialog box, enter a password and select the Encryption method AES-256.

Learn how to add a Password to zip files. Using free 7-Zip, you can encrypt & easily add a Password to zipped, archived & compressed files.

Also, 7-Zip lets you create self-extracting encrypted files. That way, the recipient only needs the password to open the file—no need to install any special software.

This data must be organized and protected so the damages are minimal in case an attacker obtains it. The easiest way to organize and protect your data on a Mac is to create encrypted ZIP files.