Security practitioner. Hacker. Community builder.
Alethe Denis
Security consultant, DEF CON Groups lead,
and founder of Dragonfly Security.
Senior Security Consultant IIBishop Fox
Department LeadDEF CON Groups
FounderDragonfly Security
About Alethe
Security starts
with people.
Alethe tests how organizations respond when someone tries to get past their people, processes, and physical security.
She is a Senior Security Consultant II at Bishop Fox. She conducts social engineering and physical penetration tests, works on red team engagements, and leads tabletop exercises. She has also created multiple service lines at her last two companies.
As Department Lead for DEF CON Groups, she supports the local hacker communities that make up the program. She is also a DEF CON Black Badge winner and the founder of Dragonfly Security.
Social engineeringPhysical securityTabletop exercisesRed teaming
Talks, classes & writing
Teaching from experience.
Alethe teaches social engineering and physical red teaming, gives keynotes, and speaks about human behavior at events within and beyond the security industry.
Outside of work
Comics, movies
& hacker culture.
Alethe grew up on ’80s hacker culture, Marvel comics, and movies. She’s a regular at the cinema, a devoted Howard the Duck fan, and happiest behind the wheel of her Jeep. Her interests in security and pop culture have also taken her to the stage at San Diego Comic-Con.
Get in touch
Contact Alethe
For work referrals, consulting, training, or speaking opportunities, connect through Dragonfly Security.
Keep exploring
Talks, stories & ideas.
Watch a talk, listen to a conversation, or dig into the work.
67 links
TrainingWorkshop: How to Build Pressure-Proof Pretexts - Antisyphon TrainingInterviewsReal World Social Engineering: What Actually Works - YouTubeTalksMeet Social Engineering Expert Alethe Denis at Dent Santa Fe 2025 | DentInterviewsAlethe Denis: The Art of Social Engineering - Phillip WylieInterviews#53 The Dark Side of Influence: When Winning Feels Like Losing ft. Alethe DenisTalksSpeaking at San Diego Comic Con with Dent!WritingMarquis Who's Who Honors Alethe Denis for Leadership in CybersecurityWritingAlethe Denis Discusses Her Approach To Security Testing, Building An Ethical Red Team And Providing Value To ClientsWritingFrom Dial Tone to Throne: IVR Testing in the Spirit of The King of…TalksEpic Fails and Heist Tales: Red Teaming Toward Truly Tested Security | Alethe DenisWriting“Humans Aren’t the Weakest Link, They’re the Strongest Layer in Cybersecurity,” says Social Engineer Expert Alethe DenisWritingNavigating Workplace Security: Red Team Insights for the Return to…InterviewsVast majority of cyberattacks still traditional and unsophisticated – Alethe Denis exclusive interviewInterviewsInside the role of a red teamer | The InferenceInterviewsRed team hacker on how she 'breaks into buildings and pretends to be the bad guy'InterviewsEpisode 113: "I'm Not a Threat, But You're Adorable" - Alethe, Part 2 by Layer 8 PodcastInterviewsEpisode 112: Red Teaming with Alethe Denis, Part 1 by Layer 8 PodcastInterviewsNexus Podcast: Alethe Denis on Social Engineering, Red-TeamingInterviewsEpisode 113: "I'm Not a Threat, But You're Adorable" - Alethe, Part 2InterviewsEpisode 112: Red Teaming with Alethe Denis, Part 1WritingManipulating the Mind: The Strategy and Practice of Social EngineeringInterviewsS3 – Episode 003 – Alethe-Al Weapon with Alethe DenisWritingTop 10 physical security considerations for CISOsInterviewsThe DNA dilemma: Unraveling a 23AndMe breach.InterviewsPODCAST: National Cryptologic Foundation #CyberChats Podcast S2 Episode 14 - The Path to Becoming a Social Engineer with guest Alethe DenisInterviewsEpisode 1 | We Think We Know Podcast feat. Alethe DenisInterviews”We think we know” on Apple PodcastsInterviewsSecurity Awareness Training Is Not Enough! Convo with Alethe DenisInterviewsEpisode 3 - The Storm and the Light PodcastWritingDarkReading: Social Engineering Adds Depth to Red Team ExercisesTalksKeynote: Red Notice - Pros And Cons - Alethe Denis - SecurityFest2023InterviewsInterview: Protecting Organizations and People from Social Engineering TalksBSidesSF 2023 - HALT AND CATCH FIREResourcesgridstudio.ccInterviewsEp. 16 - Like Shooting Vish in a Barrel // Alethe Denis | BeyondTrustInterviews34| THE Social Engineer w/ Alethe DenisInterviewsDarknet Dairies - Ep. 107: ALETHETalksDefend Like A Girl: Hacking Your Way to Cyber SuccessWritingDon’t neglect physical security, expert penetration testers sayWritingPen testers reveal why companies are vulnerable to social engineering attacksWritingDie besten Tricks der LügenprofisWritingSocial Engineering: Einblicke in moderne WirtschaftsspionageWritingIn this Security Job, Sexism and The Patriarchy Are Actually Helping Women ExcelTalksBSides Vancouver 2022 Keynote: 12 Monkeys, Curtains for Security Theatre with Alethe Denis InterviewsSocial engineering: security's secret weapon? - IDentity Today - Omny.fmTalksSANS OSINT SUMMIT - Open House: Real Property OSINT and Researching Public RecordsTalksAlethe Denis: "BURN NOTICE: Confronting an Online Scammer"WritingFEATURE: Making security a more welcoming field for womenWritingWall Street Journal: Scammers Targeting Gen Z and Millennials Become More Social Media SavvyTalksTainted Love: Valentine’s Day and Romance ScamsInterviewsSocial Engineering & Cyber Job Skills w/ Alethe Denis - Cyber Diner Episode #5TalksAn Evening with the Puppet Masters TalksPHISHY LITTLE LIARS - ConINT 2020 EditionInterviewsAlethe Denis on The Official Offensive Security PodcastInterviewsMental Health in InfoSec with Alethe Denis - CyberSpeaksLIVE (podcast)InterviewsAlethe on CyberSpeaksLIVEInterviewsLayer 8 Podcast - Episode 76: Alethe Denis - Creating Pretexts for Social EngineeringInterviewsHacker Factory Podcast - From DEF CON Social Engineering CTF Black Badge Winner To Cyber Security Consultant | A Conversation With Alethe Denis | The Hacker Factory With Phillip WylieInterviewsSpotify TraceLabs Podcast - The Deathstar Run: OSINT with Alethe Denis PART IInterviewsSpotify TraceLabs Podcast - The Deathstar Run: OSINT with Alethe Denis PART IIInterviewsTraceLabs Podcast - The Deathstar Run: OSINT with Alethe Denis PART IInterviewsTraceLabs Podcast - The Deathstar Run: OSINT with Alethe Denis PART IIInterviewsInfoSec Journey - Uncommon Journey PodcastInterviewsOrigin Story - Layer 8 PodcastSocialINSTAGRAMSocialLINKEDINSocialX
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