The more levels of security you have on your Mac, the safer your files will be. This is particularly true if you allow multiple people to use your computer. For your most sensitive files, it's a good ...

Passwords are universally regarded as the first line of defense in the software world. Be it when setting up a new device or even while opening an online account, — securing it with a password is the ...

You probably already know how to password protect your computer, locking out other, but if you know how to password protect folders you can safely let others use your ...

Sometimes, you need to keep files on your computer that you just don't want other people to see. Whether it's a gift list or that porn stash, hiding files is easy. Here's how to do it. If you just ...

Firewalls scan data sent to your computer for malware and attempt to block files or other data they deem suspicious. Like ...

Microsoft Excel lets you embed content from other applications, including PDF files. You can embed a PDF file into a cell of an Excel worksheet and then use Excel's security features to lock the ...