Antivirus program on wife's MacBook Pro?

You can download and run Etrecheck It is a diagnostic tool that's very useful to us in finding problems. It will give you a snapshot of the system. After it runs you can post the log file here for analysis. It will contain no personal information.

No Anti-Virus software or so-called “cleaning” apps are needed or recommended for Mac OS. They can conflict with Mac's own built-in security. At best they will slow your Mac by using unnecessary resources and at worst will bork your entire system.

There is also Malwarebytes…

https://www.malwarebytes.com/mac/

macjack wrote:

I don't think Malwarebytes flags AV software if it is legitimate?

Nope, only fake AV that doesn't actually detect stuff, and that uses scare tactics and other underhanded methods of getting the user to buy. Legit AV, no, Malwarebytes will not detect that.

I don't think Malwarebytes flags AV software if it is legitimate?

OOOPs, read it wrong again. 😕