Jonathan Zdziarski is better known as the hacker "NerveGas" in the iOSdevelopment community. His work in cracking the iPhone helped lead theeffort to port the first open source applications to it, and his bookiPhone Open Application Development taught developers how to writeapplications for the popular device long before Apple introduced itsown SDK. Jonathan is also the author of many other books, includingiPhone SDK Application Development and iPhone Forensics. Jonathanpresently supports over 2,000 law enforcement agencies worldwide anddistributes a suite of iOS forensic imaging tools to obtain evidencefrom iOS devices for criminal cases. He frequently consults and trainslaw enforcement agencies and assists forensic examiners in theirinvestigations.
Jonathan is also a full-time Sr. Forensic Scientist, where, amongother things, he performs penetration testing of iOS applications forcorporate clients.