Comment Fax vs PC (Score 1) 531
I believe the problem is due to the fact that I, like most people I'm sure, have never heard of this simple exploit.
Second, people obviously trust fax machines, perhaps because they're simplistic compared to computers. There's so much magic with email I can see why people don't trust it. It's unfortunate that people don't consider unforeseen physical hacks as serious threats as well.