David Epler is a Full Stack Security Engineer at InVisionApp squashing security bugs and issues. He also works with outside penetration testers through the bug bounty programs that InVisionApp uses. He has several security certifications, including Certified Ethical Hacker (CEH) and GIAC Web Application Penetration Tester (GWAPT). David has been developing with ColdFusion since version 4 and is an active member of the ColdFusion community. He has contributed to several open source ColdFusion projects and contributed the Security chapter for Learn CF in a Week.