# Jeff Moss

> Founder of DEF CON and Black Hat.

Moss founded DEF CON in 1993 and Black Hat in 1997, shaping how the security community gathers, researches, and recruits. He has served on the U.S. Homeland Security Advisory Council and advises governments on cybersecurity policy.

- **Category:** [Influencers & Voices](https://gracker.ai/cyber-resources/influencers)
- **Website:** https://defcon.org
- **Location:** Seattle, WA, USA
- **Company:** DEF CON Communications
- **Title:** Founder, DEF CON & Black Hat
- **Verified:** Yes
- **Last updated:** June 9, 2026

## Expertise

- Hacker community building
- Conference leadership
- Security policy

## Frequently asked questions

### Who is Jeff Moss?

Jeff Moss, known as The Dark Tangent, founded DEF CON and Black Hat, the two most influential hacker and security conferences in the world, and is a long-standing voice in hacker culture and security policy.

### What is Jeff Moss's current role?

Jeff Moss is Founder, DEF CON & Black Hat at DEF CON Communications.

### What is Jeff Moss known for?

Jeff Moss focuses on Hacker community building, Conference leadership, Security policy.

### Where is Jeff Moss based?

Jeff Moss is based in Seattle, WA, USA.

### What is Jeff Moss listed under on Cyber Resources?

Jeff Moss is listed in the Influencers & Voices category of Cyber Resources, the curated directory of the cybersecurity marketing and growth ecosystem.