Miller was a lead analyst at Independent Security Evaluators, a computer protection consultancy. He has publicly demonstrated many security exploits of
Apple products. In 2008, he won a $10,000 cash prize at the hacker conference
Pwn2Own in
Vancouver, British Columbia, Canada for being the first to find a critical bug in the
MacBook Air. In 2009, he won $5,000 for cracking Apple's
Safari browser. Also in 2009, he and Collin Mulliner demonstrated an
SMS processing vulnerability that allowed for complete compromise of the Apple
iPhone and
denial-of-service attacks on other phones. In 2011, he found a security hole in the iPhone and iPad, whereby an application can contact a remote computer to download new unapproved software that can execute any command that could steal personal data or otherwise using
iOS applications functions for malicious purposes. As a proof of concept, Miller created an application called
Instastock that was approved by Apple's
App Store. He then informed Apple about the security hole, who promptly expelled him from the App Store. Miller participated in research on discovering security vulnerabilities in NFC (
Near Field Communication). == First Apple iPhone exploit ==