Anti-virus program compatible with macOS Catalina 10.15.7

And here's my 2¢ worth:

First, there is no reason to ever install or run any 3rd party "cleaning", "optimizing", "speed-up", anti-virus, VPN or security apps on your Mac.  This documents describe what you need to know and do in order to protect your Mac: Effective defenses against malware and other threats - Apple Community and Recognize and avoid phishing messages, phony support calls, and other scams - Apple Support.  

There are no known viruses, i.e. self propagating, for Macs.  There are, however, adware and malware which require the user to install although unwittingly most of the time thru sneaky links, etc.   

Anti Virus developers try to group all types as viruses into their ad campaigns of fear.  They do a poor job of the detecting and isolating the adware and malware.  Since there are no viruses these apps use up a lot of system resources searching for what is non-existent and adversely affect system and app performance.

There is one app, Malwarebytes, which was developed by a long time contributor to these forums and a highly respected member of the computer security community, that is designed solely to seek out adware and known malware and remove it.  The free version is more than adequate for most users.  

Unless you're using a true VPN tunnel, such as between you and your employer's, school's or bank's servers, they provide false security from a privacy standpoint.  Read these two articles: Public VPN's are anything but private and Security Risks: The Dangers of Using Free VPNs (eccu.edu).  

Additionally, a new study ("Apple Offers Apps With Ties to Chinese Military”) is specifically about VPN apps in Apple’s App Store.

Just some food for thought.

Hi cartney64

welcome to thhis Apple (user-to-user) Community!

Re: "Which anti-virus program will work on Catalina OS 10.15.7?"

FY!: Seems Apple computers have their own built-in security and protection software, and adding an anti-virus app may result in interference, and/ or troublesome issues.

Third-party apps, like virus-checkers, cleaners, ad-blockers, and the like, (even VPN) may also run in the background all the time, taking up resources better used elsewhere, Many Apple users have encountered serious difficulties with continuing to run their computer, until an app of this nature was singled out as the main cause, and removed, along with the remnants of anything it has created.

User-volunteers who assist other users in the community may be able to help if you have a particular problem-situation at the moment.

Eg: Apple Support's online article helps trouble-shoot network connection iissues:: If your device has network connectivity issues, check for VPN and other third-party security software - Apple Support

All the best :-)

I would recommend NONE. All have shown to cause conflicts with the OS and not needed.

MacOS is the most secure operating system on the market. Privacy is at the very core of all Apple products and services.

I would advise against installing anything that interferes with that.

Don’t be fooled by clever marketing advertisement tactics that rely on fear to sell you a solution to a problem that doesn’t exist.

All the best! 👋🏼😉

Smiliñ 😎 Brian