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

Encrypting files, folders, and drives on your computer means that no one else can make sense of the data they contain without a particular decryption key —which in most cases is a password known ...

Using a plug-in for the popular Windows text editor, Notepad++, you can easily encrypt selected text and entire text files.

Working with an Excel workbook that contains confidential information such as financial data, personal details, or trade secrets? Here's how you can protect the data in your Excel file from prying ...