Ever download a folder full of files, only to notice all of the documents inside are zipped shut and encrypted—basically the digital version of Fort Knox? These are examples of the ever ...

How does a zip file work, and how can you use it? Here's everything you need to know to master the art of sending massive files.

How to Encrypt any File, Folder, or Drive on Your System Trust us, it’s safer this way. Photograph: Peter Dazeley/Getty Images ...

Have a private document on your desktop OS? Here's how to keep it secure on Linux, MacOS, and Windows.

Here's how to use DiskCryptor, BitLocker, or TrueCrypt to encrypt sensitive documents or even entire hard drives in Windows.

Express Zip free file compression for Windows lets you open & extract archive formats like zip, rar, cab, tar, 7z, iso, gzip, multidisk, zipx, lzh, arj & more.

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.

When you click on that encrypted file, which will now be saved as a .dmg, it will prompt you for the same password you just entered. (Hopefully you haven’t already forgotten it.) Enter the ...

Apple has several different encryption tools built into macOS, letting you encrypt your entire Mac or individual files or folders, and in this guide we'll show you how.