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 ...

Move over viruses, step aside worms: Ransomware has the spotlight and isn't about to give it up. From taking down entire fuel pipelines to hijacking hospital networks, it's the cyberattack du jour.

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 ...

Using encrypted files and drives is normally something you can do without even thinking about it. In most cases, simply logging into your computer is all that is needed to access the data. However, in ...