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Jay Freeman (left) at an Isla Vista Community Center outreach event (2016)
|Born||November 27, 1981
|Alma mater||College of Creative Studies, University of California, Santa Barbara|
Jay Freeman (born November 27, 1981) is an American businessman and software engineer. He is known for creating the Cydia software application and related software for jailbroken iOS -- a modified version of Apple's iOS (where OS stands for operating system) that allows for the installation and customization of software outside of the regulation imposed by the App Store system.
Education and early work
Freeman studied and graduated with a computer science degree from the College of Creative Studies at the University of California, Santa Barbara. In 2009, he was a doctoral student in computer science at UCSB.
He built Anakrino, a decompiler for .NET available in 2002. He co-authored a paper published in 2005 about a "Java runtime event specification and monitoring library." He has worked with Brian Fox on multiple freelance projects.
In February 2008, Freeman released the initial version of Cydia, a software distribution and installation tool for jailbroken iOS. In May 2009, he added a proprietary store system to Cydia which allows developers to sell their products. In September 2010, his company (SaurikIT, LLC) announced that it had acquired Rock Your Phone, Inc. (makers of Rock.app). SaurikIT and Rock Your Phone were the two largest providers of third party apps.
He has published tools for developers to make software, particularly for jailbroken iOS. He made Cydia Substrate, a framework that developers use to help them modify iOS with extensions. He also made Cycript, a tool that developers use to inspect and modify applications on iOS and OS X.
He has developed a plethora of software extensions for jailbroken iOS users to add features to iOS, including Apple File Conduit 2, Cycorder, CyDialer, Cydget, Cyntact, Cyueue, Five Icon Dock, Veency, and WinterBoard. He has also released Cydia Impactor for jailbroken iOS, a tool for removing personal data and "unjailbreaking" the device while preserving the iOS version.
Freeman has also done software development and security research on the Android OS. In 2008, he ported Debian for use on an Android phone. In April 2013, he built an implementation of a root (jailbreak) for Google Glass and published an analysis of the ramifications. In May 2013, he published a version of Cydia Substrate for Android. In July 2013, he published an analysis and implementation of "Master Key" vulnerabilities for Android.
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- Grundgeiger, Dave (January 21, 2002). "Top Five Visual Basic .NET Tips". O'Reilly WindowsDevCenter. O'Reilly Media, Inc. Retrieved October 8, 2014.
- Karaorman, Murat; Freeman, Jay (January 2005). "jMonitor: Java Runtime Event Specification and Monitoring Library". Electronic Notes in Theoretical Computer Science (Elsevier) 113: 181–200. doi:10.1016/j.entcs.2004.01.027. Retrieved May 5, 2015.
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- Jurick, David; Stolarz, Adam; Stolarz, Damien (Apr 2, 2009). iPhone Hacks: Pushing the iPhone and iPod touch Beyond Their Limits. O'Reilly Media, Inc. p. 56. ISBN 9780596555689. Retrieved October 8, 2014.
- Sadun, Erica (November 10, 2008). "Debian ported to G1". Ars Technica. Retrieved October 8, 2014.
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- Greenberg, Andy (April 30, 2013). "Developer Warns Of Google Glass Security Risks Following His Jailbreak Exploit". Forbes. Retrieved October 8, 2014.
- Perez, Sarah (May 14, 2013). "Cydia Substrate Comes To Android (Cydia Store Next?)". TechCrunch. Retrieved October 8, 2014.
- Weintraub, Seth (July 21, 2013). "Cydia developer Saurik exploits and fixes Android’s Master Key vulnerability with ‘Impactor’". 9to5Google. Retrieved October 8, 2014.
- Brugger, Kelsey (February 26, 2015). "Isla Vista: Divide and Conquer?: Opinions Split Over Self-Governance Options". The Santa Barbara Independent. Retrieved May 6, 2015.
- "Another Challenger Joins 3rd District Race". www.independent.com. Retrieved 2016-02-05.