DEF CON (33)- 2025
August 7, 2025 - August 10, 2025
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What originally started as a party for a specific group of hackers on the “Net” in 1993 has turned into the biggest regular hackathon in the world. With an average of 27-28 thousand attendees, the DEF CON remains a singular experience in the cybersecurity community. The organization created a Safe Mode with Networking website, which is a centralized location for virtual conference content.