We’ve warned against using too many scare tactics on your website (see OBR 119, Marketing Security). Here’s data to support that argument.
The latest Pew Internet Project survey (PDF) found that more than 70% of Internet users had either never heard of the term Internet phishing (15%) or were unsure of its meaning (55%), leaving just 29% who said they had, "a pretty good idea of what the term meant." In comparison, 88% of Internet users had a pretty good idea of what Spam meant, 78% knew Firewall and also Spyware, while 68% understood Internet cookies, and even 52% knew Adware.
—JB