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About DC256

DC256 is the Huntsville, Alabama DEF CON Group — a local meetup for hackers, tinkerers, and information security enthusiasts. We’re an open group welcoming everyone from seasoned professionals to curious newcomers.

Our mission is to share knowledge, promote hands-on experimentation, and build a strong local security community. Expect workshops, lightning talks, CTFs, and general chaos.

Next Event

February Meetup — Rodney Visser — Artificial Doubt: The Collapse of Trust in Digital Material

Date: Friday, February 20, 2026
Time: 6:00 PM
Location: GigaParts Classroom, Huntsville

For decades, digital evidence has quietly relied on a fragile assumption that authenticity could be inferred after the fact. Hashes, metadata, chain-of-custody forms, and expert testimony were “good enough” when fabricating convincing images, video, or audio was expensive and rare. Generative AI shattered that assumption and we need better means of security against threats that exploit this ambiguity.

See all events →

Flyer: Rodney Visser — Artificial Doubt

Also Upcoming

Tech Thursdays (DC256 × NAC-ISSA) — Beyond The Bytes: Making Your Own Wireshark Dissector for Mysterious and Unknown Protocols

Date: Thursday, February 19, 2026
Time: 6:00 PM – 8:00 PM
Location: GigaParts Classroom, Huntsville

This hands-on workshop dives into the real craft of protocol reverse engineering — teaching you how to analyze unknown traffic and turn that knowledge into a reusable, custom Wireshark dissector. Perfect for defenders, researchers, and anyone who wants deeper visibility into the wire. If you like learning skills that actually transfer to real-world investigations and tooling, don't miss this.

Details on Events page →

Flyer: Tech Thursdays - Beyond The Bytes

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Contact Us

Email: [email protected]

Meetups held every 3rd Friday @ 6PM at:

GigaParts
6123 University Dr, Huntsville, AL 35806