Most of all of know that we take a risk being online of being the victim of malicious content aimed at stealing or destroying our information. Because of this risk we install software that will keep us from being "infected." Have you ever thought for a moment about this from a spiritual prospective?
What are we doing so that we will not be infected by the "viruses" that are all around us? Can I suggest that we use God's Word as our virus protection. There is power in God's Word as we read it,meditate upon it and ultimately allow it to be a part of our lives.
Make sure that you read and do God's Word (James 1:22), there is a lot of nasty stuff out there.