A most interesting article, for which I thank you.
Did you ascertain why, of all the products you tested, ClamXav is the
only company which doesn't ask for one's email address before granting a
'free trial'?
Did you use the official uninstaller?
https://www.clamxav.com/sup...
How do I uninstall ClamXAV completely?
You can simply drag ClamXAV.app to the trash; after a few seconds you’ll
see a message asking if you would also like to uninstall the scanning
engine.
If this doesn’t happen or it doesn’t appear to have worked, you can
download the uninstaller and run it manually. The uninstaller will
remove the scanning engine, preferences and any schedules you’ve got set
up. But we’ll be sorry to see you go
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Having used the uninstaller, did you check all the ADDITIONAL items
which ClamXav had loaded onto your computer but which were NOT removed
during the process? I don't know if anything malicious is left behind
but if YOU didn't check, who has?!!!
HTH
David B.
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Posted in the comments section, here:-
https://uk.pcmag.com/antivirus/4669/clamxav-for-mac?