Cyber Security Festival 2025, one of the regions premier cybersecurity event, is set to bring together over 1,200 IT professionals, experts, and thought leaders – including David Heinemeier Hansson, the creator of Ruby on Rails, co-founder of 37signals, and New York Times-bestselling author.
Two days of discussions, hands-on workshops, and networking await participants. Taking place on November 4–5, 2025, at TAP1 in Copenhagen, the festival will tackle the most pressing challenges in cybersecurity, from AI-driven threats to geopolitical cyber warfare.
Among the 50+ speakers at this year’s festival, David Heinemeier Hansson (DHH) is just one of the highlights. Known for his pioneering work in software development, entrepreneurship, and digital sovereignty, DHH will join Lars Jacobsen, Editor-in-Chief of Computerworld, for an exclusive fireside chat on November 5. Their discussion will explore both the intersection of digital sovereignty and cybersecurity as well as why European tech solutions are critical for independence and resilience.
As the creator of Ruby on Rails and a vocal advocate for ethical tech and data ownership, DHH’s presence brings to the event more focus on innovation, security, and sovereignty.
When: 4 – 5. november 2025, 08:00 – 17:00 & 08:00 – 15:25
Where: TAP1, Raffinaderivej 10, 2300 Copenhagen
Tickets: Registration here.
