Klaus Gebeshuber is a professor of IT security at FH Joanneum University in Kapfenberg, Austria. He focuses on network security, industrial security, security analysis, and penetration testing. Klaus holds numerous industry certifications in IT security and penetration testing. In this book, he covers the topics of exploits, security in wireless networks (WLAN/Bluetooth), security in web applications, bug bounty programs, and dealing with passwords in five chapters.