Dr. Martin Johns is a Research Expert in the Security and Trust group within SAP AG, where he leads the Web application security team. Furthermore, he serves on the board of the German OWASP chapter. Before joining SAP, Martin studied Mathematics and Computer Science at the Universities of Hamburg, Santa Cruz (CA), and Passau. During the 1990ties and the early years of the new millennium he earned his living as a software engineer in German companies (including Infoseek Germany, and TC Trustcenter). He holds a Diploma in Computer Science from University of Hamburg and a Doctorate from the University of Passau. Martin has a track record of 8+ years applied WebAppSec research, published more than 20 papers on the subject, and is a regular speaker at international security conferences, including the OWASP AppSec series, ACSAC, ESORICS, PacSec, HackInTheBox, RSA Europe, or the CCC Congress.