For an IT security manager, a software vendor or a specialist journalist, 2027 needs planning now. As of 12 November 2026, four major cybersecurity events taking place between March and August 2027 display dates on their official websites: Forum InCyber in Lille, GISEC in Dubai, Infosecurity Europe in London and DEF CON in Las Vegas. Other heavyweights, such as RSAC and Black Hat, could not be verified at the source: we are therefore not publishing dates for them.
March and May: Lille opens the season, Dubai takes over
- Forum InCyber Europe, Lille, 9 to 11 March 2027. The forum’s website announces the European edition at Lille Grand Palais. It presents itself as the leading European event on digital trust, a theme that resonates with public administrations as well as French and European software vendors.
- GISEC Global, Dubai, 4 to 6 May 2027. The Emirati show states that it will be held at the Dubai Exhibition Centre in Expo City. It highlights security leaders from more than 180 countries and more than 750 brands. A word of caution, however: while the website text shows these May dates throughout, the image file of its logo bears the dates 16 to 18 September 2027. Confirmation from the organiser is advisable before booking.
June and August: London, then the big Las Vegas gathering
- Infosecurity Europe, London, 8 to 10 June 2027. The British show sets up at ExCeL London, near Royal Victoria Dock, in the east of the capital. Doors open from 9.30 a.m. to 5.30 p.m. on Tuesday and Wednesday, and until 4 p.m. on Thursday. The show claims thirty years of existence, but its website does not publish an attendance figure for the next edition.
- DEF CON 35, Las Vegas, 5 to 8 August 2027. The hacker convention has listed these dates in the future editions section of its website, at the Las Vegas Convention Center, whose West Hall hosted the 2026 edition from 6 to 9 August. Its audience of security researchers, enthusiasts and penetration testing specialists differs from that of commercial trade shows.
The convention publishes its dates very early: a message from October 2025 already announced those for 2026 and 2027, leaving plenty of time to arrange travel.
Absent from this calendar, and why
Two major events are deliberately missing from this list: RSAC and Black Hat. Their official websites did not allow their 2027 dates to be read as of 12 November 2026; without confirmation at the source, we prefer not to state anything and will add them as soon as they are verified.
For the autumn, the German show it-sa Expo&Congress announces its edition from 5 to 7 October 2027 at the Nuremberg exhibition centre. The event takes place both on site and online.
How to choose your cybersecurity show in 2027
These events are not alike. Forum InCyber focuses on digital trust and European regulation, useful for those who work with public-sector buyers. Infosecurity Europe and GISEC are primarily exhibitor shows, suited to business prospecting and product monitoring. DEF CON is aimed at technicians and researchers, with a community culture that leaves little room for stands.
For an African or French-speaking company looking for partners, Lille and Dubai offer the most direct access: the former to the European market, the latter to Gulf contractors. Journalists, for their part, need to plan ahead: press accreditation requests often close several weeks before the doors open.
Frequently asked questions
When is Forum InCyber 2027?
The European edition of Forum InCyber takes place from 9 to 11 March 2027 at Lille Grand Palais, according to the event’s official website.
What are the dates of DEF CON 35?
DEF CON 35 is announced for 5 to 8 August 2027 at the Las Vegas Convention Center, according to the future dates page published by the organisation.
Why are the RSAC and Black Hat 2027 dates not listed here?
Their official websites could not be accessed during our check on 12 November 2026. We only publish dates read at the source and will complete this calendar as soon as possible.
All the listings for these shows, with their updates, are gathered in 24h00’s tech events calendar. Do you cover cybersecurity and wish to be accredited to one of these events through us? Write to us from our page dedicated to press accreditation requests.
Sources
- Forum InCyber Europe 2027 — Forum InCyber (official website), 2026-11-12
- GISEC Global 2027 — GISEC (official website), 2026-11-12
- Infosecurity Europe 2027 — Infosecurity Europe (official website), 2026-11-12
- DEF CON — Future Dates — DEF CON (official website), 2026-11-12
- it-sa Expo&Congress 2027 — it-sa / NürnbergMesse (official website), 2026-11-12