If you’ve ever helped organize a tech conference, you know that keeping a building full of IT pros and hackers engaged requires more than just decent coffee and a PowerPoint deck. You have to give them something to interact with. …

If you've hung around the Hard Hat Brigade at DEF CON, you know we take our headgear seriously. But after spending way too much time making sure our latest helmet designs didn't just look like identical Ghostbusters knockoffs, I realized …