Alethe Denis is a social engineer who specializes in open-source intelligence (OSINT) and phishing, specifically pretexting (voice elicitation). The winner of a black badge at DEFCON 27 in the Social Engineering Capture the Flag contest, she is the Founder and VP of Dragonfly Security and a Founding Member of the DC209 DEFCON Group. She’s presented at BSides San Francisco and Layer 8 and has joined panels at DerbyCon and the Human Firewall Event. She enjoys sharing her skills and offering trainings to both those on the ethical offensive and defensive sides of security and privacy.