Linux gets viruses too (see recent xz-utils vulnerability that almost got into production environments) and its kind of a shame that corporate antivirus software like Norton and McAfee end up ruining the reputation of antiviruses. In theory the idea of having a software that can scan for common viruses is a great way to increase security, even if it shouldn’t replace common sense. I’m not too sure if there are any good FOSS antiviruses, but if there aren’t there should be.