The current threat landscape SMBs face today is scary to say the least. The bad guys – many of whom are part of organized crime units backed by serious funding – are well ahead of the pack. It’s not really a fair fight, because some of the smartest people in the world are attacking people who have other priorities – business owners.
Where do you think computer security would rank on a list of an SMB owner’s daily priorities? Probably not high, because they have to worry about running their business.
This is why they hired you, the MSP, to manage these sorts of things for them. As far as the SMB owner is concerned, whether it’s a virus, a deleted file, or a busted server, all business interruptions are the same. They just need you to stay on top of this stuff and keep them protected.