Explore the critical aspects of mobile device security in this conference talk from Outerz0ne 2011. Delve into topics such as email security, network protection, rogue app detection, software updating, ownership concerns, and common application mistakes. Examine platform differences, web services vulnerabilities, and risk assessment strategies. Learn about emerging threats, future web applications, and data loss prevention techniques. Gain insights into specific security challenges related to stock trading apps and understand what companies and vendors must know to effectively secure mobile devices in an ever-evolving technological landscape.