David is a Senior Consultant with Intrepidus Group, where he’s spouted off about RSA, supported large-scale iPad deployments, and found obscure bugs in Apple’s MDM system. He’s been fortunate enough to present at ShmooCon and at Black Hat, and recently co-authored an iOS programming security class for SANS.

In 2009, David won the Shmoocon V badge puzzle, and has been hooked ever since. He’s been the first to solve over a dozen such challenges, and has won prizes ranging from a Sakebomb decanter to an iPad (twice!), but he feels the best prize is simply completing the challenge. However, David also estimates that he makes at least one boneheaded mistake for every puzzle he’s solved.

Prior to Intrepidus, he spent some years performing compliance-based testing. Despite this, people actually interact with him on Twitter (@schuetzdj) and sometimes leave nice comments on his blog (www.darthnull.org).