Who Provides Phishing Training?

Humans represent one of the most persistent vulnerabilities in many computing systems. Since human users are independent agents who make their own choices, closing these vulnerabilities means persuading users to make different choices. Focusing on one specific human choice -- clicking on a link in a phishing email -- we conducted an experiment to identify better ways to train users to make more secure decisions. We compared traditional facts-and-advice training against training that uses a simple story to convey the same lessons. We found a surprising interaction effect: facts-and-advice training works better than not training users, but only when presented by a security expert. Stories don't work quite as well as facts-and-advice, but work much better when told by a peer. This suggests that the perceived origin of training materials can have a surprisingly large effect on security outcomes.