DEF CON 27, Blue Team Village, @Lak5hmi5udheer's, @dhivus & @NarayanGowraj's 'Who Dis Who Dis: The Right Way To Authenticate' → December 28, 2019 by Marc Handelman in Blue Team, Conferences, Education, Information Security, Authentication, DEF CON 27 Thanks to Def Con 27 Volunteers, Videographers and Presenters for publishing their superlative conference videos via their YouTube Channel for all to see, enjoy and learn.