Last week, Jonathan Zdziarski delivered a much-talked about presentation on bypassing the iPhone 3G passcode, in which he revealed some little known "security" issues pertaining to that device. Most notable was the fact that the iPhone captures and stores screenshots of any place you visit on the web (using your iPhone, of course). If you missed the live webcast, you can now view it here, or visit the O'Reilly Media channel on YouTube and watch it in higher resolution (click the "High Quality" button under the movie. That button hasn't appeared as of this posting—it takes ahwile longer to process—but it will be there shortly).
If the subject interests you, you'll want to take a look at Jonathan's just-released book, iPhone Forensics. Of special interest to security pros and law enforcement personnel, this book shows you how to recover, analyze, protect, and securely destroy sensitive data stored on the phone.
To view Jonathan Zdziarski's previous presentations and other O'Reilly webcasts, visit webcasts.oreilly.com.