Protect Your Mac
Macintosh computers are very secure and immune from the viruses and malware that affect Windows computers. If you want further peace of mind, follow the guidelines below.
Install Antivirus Software
Sophos Antivirus for Mac (free)
Avast Free Antivirus for Mac
Install and Run Anti-Malware/Adware Software
Malwarebytes Anti-Malware for Mac
If you receive a phone call and the caller claims they have detected problems on your computer, HANG UP! THIS IS A SCAM. There is no way for someone to “know” your computer has problems unless they have physical access to your Mac. Never give anyone remote access to your computer unless you know and trust them.
Pop up screens offering to fix your computer
If you see a window pop up when you are browsing the Internet claiming to have detected numerous problems on your computer, close the window or quit the browser. Pop-up ads like this are misleading and should be avoided. Unless someone has physical access to your computer, they cannot diagnose problems on it.
Public (Unsecured WIFI)
If you are using a public, or open WIFI network, do not sign into sites with sensitive information, like financial sites. Hackers, to obtain personal information, can easily penetrate unsecured WIFI networks. They can monitor traffic on the network and obtain passwords, account names and so forth.