As long as we're talking percentages, Secure Mail (formerly IronMail) makes a scary point about cybercrime: "There are twice as many cyber-crimes committed per second than there are real world burglaries and robberies." (Been nice to see some documentation for their statistic, but it's still scary.)
What I like about their approach to the market is the company's understanding of the IT demands and restrictions that small and midsize businesses face -- demands that combine budget and resource limitations with the fact that non-enterprise level businesses not only may not be able to afford the "full boat" but may not need all of the bells, whistles and extras that bigbiz clients buy.
Take a look, for instance, at the company's small to medium business S-Class Level of service.
The company offers a variety of Secure Mail demonstration webinars here.