David Litchfield is recognized as one of the world's leading authorities on database security. He is the author of the Oracle Hacker's Handbook, the Database Hacker's Handbook, SQL Server Security and is the co-author of the Shellcoder's Handbook. With over 220 CVE-IDs attributed to David since 1999, and after 8 CERT advisories issued based upon his research (no - he didn't write SQL Slammer but he did find the flaw it exploited!), he is currently working for Google as a security engineer.