• THOTCON 0x1 was held on April 23, 2010, at
Joe's Bar. :The conference had approximately 216 attendees and 12 talks. • THOTCON 0x2 was held on April 15, 2011, also at
Joe's Bar in Chicago, IL. : The conference had approximately 310 attendees and 12 talks. • THOTCON 0x3 was held on April 27, 2012, at the Ravenswood Event Center, 4025 N Ravenswood, Chicago, IL. : The conference had approximately 493 attendees and 11 full-length talks, as well as 8 "Turbo" talks. • THOTCON 0x4 was held on April 26, 2013, at the Ravenswood Event Center, 4025 N Ravenswood, Chicago, IL. : The conference had approximately 705 attendees and featured 9 full-length talks, 11 shorter "Turbo" and "Newbie" talks, and 3 2.5-hour workshops. It was the first year to add keynotes, of which there were 2. It was also the first year to add refreshments for sale, preventing the need to leave the conference. • THOTCON 0x5 was held on April 25, 2014, at the Ravenswood Event Center, 4025 N Ravenswood, Chicago, IL. : The conference had approximately 793 attendees and featured 9 full-length talks, 11 shorter "Turbo" talks, and 7 1-hour how-to "labs." It was the only year to offer these labs and also featured the first beer brewing competition. • THOTCON 0x6 was held on May 14–15, 2015, at the Ravenswood Event Center, 4025 N Ravenswood, Chicago, IL. : The conference had approximately 1054 attendees and was the first year the conference hosted 2 full days of multiple presentation tracks, with 14 full-length talks (including 4 keynotes) and 21 "Turbo" talks. Long-form workshops and labs were discontinued this year. • THOTCON 0x7 was held on May 5–6, 2016, at the Ravenswood Event Center, 4025 N Ravenswood, Chicago, IL. : The conference had approximately 1137 attendees and hosted 13 full-length talks and 17 "Turbo" talks. • THOTCON 0x8 was held on May 4-5, 2017, at the Ravenswood Event Center, 4025 N Ravenswood, Chicago, IL. • THOTCON 0x9 was held on May 5–6, 2018, at the
Irish American Heritage Center : The conference had approximately 1492 attendees and hosted 14 full-length talks and 25 "Turbo" talks as well as 5 2-hour presentation sessions. • THOTCON 0xA was held on May 3–4, 2019 at the
Irish American Heritage Center. : The conference had approximately 1664 attendees and hosted 13 full-length talks and 19 "Turbo" talks as well as 5 2-hour presentation sessions. The game show "Hacker Jeopardy," popularized at
DEF CON by Aaron "Linitle" Lint, G. Mark Hardy, and
Winn Schwartau, and hosted by Lintile, was first added to the Contests roster this year. • THOTCON 0xB was held on October 8–9, 2021, at the
Irish American Heritage Center : The conference had approximately 1694 attendees and hosted 11 full-length talks (returning to having only 2 keynotes) and 11 "Turbo" talks as well as 4 2-hour presentation sessions. • THOTCON 0xC was held on May 19–20, 2023, at the
Irish American Heritage Center : The conference had approximately 1873 attendees and hosted 11 full-length talks and 15 "Turbo" talks as well as 4 2-hour presentation sessions. Later this year the conference announced it would be moving to a biannual cycle. == Notable Speakers ==