This is about Defense against the Black Arts: How Hackers Do What They Do and How to Protect against It. Jesse Varsalone and Matthew McFadden wrote it, we published it, Ben Rothke reviewed it, and the review went viral. I love it when that happens, but it doesn't happen too often.
Speaking of which, is anyone reading this still reading books? Buying books? Downloading pirated copies of books? Do books play any role in your working life?