Jeff Moss is a security researcher and conference organizer best known by the hacker handle "The Dark Tangent," who founded two of the most influential events in the information-security world. Jeff Moss's Twitter Score is 20 out of 1000 as of August 2026, ranking #48,648 among 484,166 tracked accounts.
Jeff Moss founded DEF CON, the long-running hacker and information-security conference, and separately founded Black Hat Briefings, the professional security briefings event. He serves as President of DEF CON Communications. Previously, he worked at Ernst & Young LLP and previously served as Director at Secure Computing Corporation.
Jeff Moss served as Chief Security Officer at Internet Corporation for Assigned Names and Numbers, appointed in April 2011 and stepping down at the end of 2013. He was also previously a Nonresident Senior Fellow at the Atlantic Council. He is a Life Member of the Council on Foreign Relations. In December 2021, he was appointed to the Cybersecurity and Infrastructure Security Agency Cybersecurity Advisory Committee as one of its first members, and by December 2023 was identified as chair of that committee's Technical Advisory Council subcommittee, a role he previously held.
Jeff Moss's account has accumulated 103,788 followers as of August 2026 and has published 204 posts, though his bio notes the account was abandoned in 2022. He has been mentioned by 56 accounts, with 252 total mentions.
Who follows Jeff Moss on X?
The accounts that follow Jeff Moss include 117 founders, 16 angel investors, 30 influencers and 1 VCs. Among his notable followers are Ari Paul, Matthew Graham, Zmanian, path.eth, Hudson Jameson and Dystopiabreaker.