Jonathan A. Zdziarski

Jonathan Zdziarski is better known as the hacker "NerveGas" in the iOS development community. His work in cracking the iPhone helped lead the effort to port the first open source applications to it, and his book iPhone Open Application Development taught developers how to write applications for the popular device long before Apple introduced its own SDK. Jonathan is also the author of many other books, including iPhone SDK Application Development and iPhone Forensics. Jonathan presently supports over 2,000 law enforcement agencies worldwide and distributes a suite of iOS forensic imaging tools to obtain evidence from iOS devices for criminal cases. He frequently consults and trains law enforcement agencies and assists forensic examiners in their investigations. Jonathan is also a full-time Sr. Forensic Scientist, where, among other things, he performs penetration testing of iOS applications for corporate clients.