Bio
Alethe Denis is a Senior Security Consultant II at Bishop Fox specializing in red team social engineering, physical security bypass, and open-source intelligence (OSINT). With extensive experience conducting security assessments for both private and public sector organizations — including critical infrastructure — she brings a rare combination of technical depth and human-focused attack simulation to every engagement.
Alethe developed and owns Bishop Fox’s Tabletop Facilitation service line, designing realistic, scenario-driven exercises that help organizations stress-test their incident response capabilities.
A recognized leader in the DEF CON community, Alethe serves as Global DEF CON Groups Coordinator and Deputy Lead for DEF CON Groups Singapore, working to grow and support the international security community. She earned a DEF CON Black Badge at DEF CON 27 after winning the 10th annual Social Engineering Capture the Flag (SECTF) contest, compromising a Fortune 500 target using only a telephone. She and her teammates have also earned bronze, silver, Most Valuable OSINT, and Black Badge awards across multiple TraceLabs capture-the-flag competitions, including first place in the August 2020 DEF CON edition of the TraceLabs Missing Persons OSINT CTF.
Alethe has appeared on the “Darknet Diaries” podcast and has taken the stage at venues as varied as San Diego Comic-Con and the DEF CON main stage. She regularly supports conferences throughout the year with talks and workshops.
