One of our puzzles this year required players to provide a professional license number. This could include a ham radio call sign. We actually didn't verify this at all (although nobody lied to us for some reason), but we were happy to misdirect people anyway! @HamRadioVillage was giving ham radio exams right behind us, so we directed players who didn't have a professional license to them.

Naturally, we created a full ham radio study guide (with all original music from our TeleChallenge soundtrack) as one of our channels! To build this, we converted KB6NU's "No Nonsense Technician Class Study Guide" to audio format, which became the "Ham Radio Channel." We hope that even if you didn't win the TeleChallenge, you at least learned something new. :)

Enjoy the Ham Radio Channel here: https://youtu.be/zU90HDY33Ow

We don't give many hints, but there's a reason why our first content drop is something called "Stonks Financial." When you're hacking an organization, you should understand the full context of it, who's important in the organization, and what is both most vulnerable and most valuable.

Hackers usually go straight for IT systems. What's really valuable, though, is the assets, information and capabilities of the organization. The shortest path to those is often not through IT systems, and even if you have full control of IT systems, you won't necessarily understand the full context of information you're seeing.

Learn about the business side of an organization! That's what we try to teach you in the TeleChallenge--just a little--along with building a really fun puzzle for you to solve. We hope to see you next year, and we are so grateful to @defcon for giving us the space to keep doing this crazy thing.