The work of Billy Hoffman, lead security researcher for SPI Dynamics (www.spidynamics.com), which was purchased by Hewlett-Packard last year, has been featured in Wired, Make magazine, Slashdot, G4TechTV, and in various other journals and Web sites. Today though he is in full flow at the inaugural AJAX Security Bootcamp, an all-day deep dive into Web application vulnerabilities being held on Day One of the 5th International AJAXWorld Conference & Expo in New York City.