I knew a guy who's job was to drive around, find medical offices, and see if he could get into their network and gain access to personal info. They didn't sell a cure, they just let people know they weren't in compliance. He said 90% of these places use consumer grade firewalls. This was in the late 90s. Now, everyone is hooked up and not a whole lot of people are wiser to the bad side of the internet.
I run a stack of servers as another hobby, I deal with !@# $%^&# frequently. The stuff we host (mostly old games that would likely be dead by now if we didn't host them) draws trolls like flies to fruit. I host in a very secure data center with extensive security and attack prevention measures. I have to take extreme measures simply due to the idiots out there looking to ruin good times.
The internet was not designed for e commerce. It's a security nightmare.