As a computer technician I have always used Antivirus because you never know where you might find a malicious file. Personally I have been using AVG Free Edition for the past 5 years and then supplemented that with some of my other removal tools. A new study has come out and shown that BitDefender is at the top of the charts for paid Antivirus on both PC and Mac (yes Mac does get viruses).
Based on vulnerabilities in 2016, Mac is LESS SECURE than Windows 10.
If you have any questions or need some help, you can email. text, or call me!
Hope all of you stay safe out there!
Tech Solution LLC