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 ...

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 ...

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