Antivirus nowadays only tells you that you&#x27;re already screwed, rather than preventing it from happening.<p>The nastiest of the nasty stuff that&#x27;s going to log keys, steal info, and so on, tends to be zero days. And after that article that showed how dismal the design of the popular antivirus apps is, there&#x27;s an argument to be made that using them <i>reduces</i> your security.