HOPE http://www.2600.com :: Hackers on Planet Earth.
BSides http://www.securitybsides.com :: Grassroots, DIY secucrity conferences held worldwide.
DerbyCon https://www.derbycon.com :: Annual hacker con held in Louisville, Kentucky every Fall.
GrrCON http://grrcon.com :: Fall in Grand Rapids, Michigan. "… GrrCON is an information security and hacking conference being held in the Midwest. This conference was put together to provide the Midwest regional information security community with a venue to come together and share ideas, information, solutions, forge relationships, and most importantly engage with like minded people in a fun atmosphere. Whether you are a Fortune 500 executive, security researcher, security industry professional, student, or a hacker of “flexible” morals you will find something for you at GrrCON…. No egos, No Divas, just a good time and good content…."
Hack Miami http://hackmiami.org :: https://winterhackerfest.com :: "… HackMiami seeks to develop and harness the participation of the information security community through regular meetings, presentations, labs and competitions. These events allow the hacker community a forum to present their research, develop new techniques and methodologies, and at the same time provides valuable a networking resource for contracting opportunities…"
Notacon http://www.notacon.org :: April 10-13, 2014 Cleveland :: "… Notacon is a fun weekend long event starting on the evening of Thursday April 10th, 2014 with a free preview and closes on the morning of Sunday, April 13th with wrap-up discussions and award. The event features three tracks of discussions and presentations, workshops and performances. In addition, we have spaces dedicated to hardware hacking, games, amateur radio, demo coding and our own streaming 24/7 radio stream, Notacon Radio. Notacon is truly an event created by and intended for the community. Everyone at Notacon is encouraged to participate and become more than simply an attendee in whatever way they feel comfortable. We embrace those from diverse backgrounds, ages and skill levels. We want everyone to join us in exploring, learning and having fun…"
PhreakNIC http://phreaknic.info :: ".. We are a loose organization dedicated to exploration and learning in almost any field. We welcome everyone to our yearly conference held in the Nashville greater metropolitan area…"
ShmooCon http://www.shmoocon.org :: Winter : Washington, DC :: "… ShmooCon is an annual east coast hacker convention hell-bent on offering three days of an interesting atmosphere for demonstrating technology exploitation, inventive software and hardware solutions, and open discussions of critical infosec issues. The first day is a single track of speed talks called One Track Mind. The next two days bring three tracks: Build It, Belay It and Bring It On…"
Thotcon http://ww.thotcon.org :: "… THOTCON (pronounced \ˈthȯt\ and taken from THree - One - Two) is a small venue hacking conference based in Chicago IL, USA. This is a non-profit, non-commercial event looking to provide the best conference possible on a very limited budget. Once you attend a THOTCON event, you will have experienced one of the best information security conference experiences combined with a uniquely casual and social experience.
ToorCon http://toorcon.net :: San Diego, Seattle and more!
VB2014 http://www.virusbtn.com :: Virus Bulletin International Conference
Nullcon http://nullcon.net Hacker Conference in Goa India usually in Feb.
Ruxcon https://ruxcon.org.au Computer security conference that aims to bring together the best and the brightest security talent within the Aus-Pacific region. The conference is a mixture of live presentations, activities and demonstrations presented by security experts from the Aus-Pacific region and invited guests from around the world. Ruxcon is widely regarded as a leading computer security conference within Australia attracting all facets of the security landscape from industry, academics, to enthusiasts.