DEF CON (@defcon) — Twitter Score 55 out of 1000

DEF CON is an annual hacker convention and cybersecurity conference founded by Jeff Moss in 1993, known for talks, Capture the Flag competitions, villages, and hands-on security contests. DEF CON's Twitter Score is 55 out of 1000 (a Good rating) as of August 2026, ranking #15,936 (top 5%) among 484,166 tracked accounts.

DEF CON has grown into one of the most prominent gatherings in the security world, drawing a broad mix of researchers, professionals, and independent hackers each year. The conference is affiliated with DEF CON Groups, a network that extends its community beyond the annual event. DEF CON has made election security a recurring focus, with its Voting Machine Village drawing significant attention; The New Yorker reported that at the 2018 edition, nearly four dozen voting machines were made available and every one was successfully compromised. At the 2023 conference, thousands of participants took part in a Generative Red Team Challenge designed to probe generative AI models, an effort reported as backed by the White House and major technology companies.

DEF CON held its most recent event, DEF CON 33, at the Las Vegas Convention Center from August 7 through 10, 2025, with attendance of approximately 26,000. DEF CON posts 22,075 times and has built a following of 448,839 on the platform. The account has been mentioned by 236 accounts, with 1,896 total mentions.

Who follows DEF CON on X?

The accounts that follow DEF CON include 289 founders, 55 angel investors, 82 influencers and 6 VCs. Among them are Jesse Powell, Tyler Winklevoss, Jason Choi, Tay, Cameron Winklevoss and Ali Yahya.