We don't foresee Apple chasing folks down that have modified their iPhone or anything, but at least one case has proven that you may want to return your handset to stock before attempting to have it serviced. According to a recent report, a handset running "some third-party apps" and operating on T-Mobile was flat out rejected when it entered an Apple store for service. More specifically, the employee reportedly said that "the warranty was voided," and added that the mobile was "blacklisted" against future service or return. 'Course, the owner did manage to coerce the Apple store manager to allow a return (albeit with a 10-percent restocking fee added on), but we'd highly recommend reverting your iPhone to AT&T mode before begging for service just in case.

[Via Digg, image courtesy of HamptonRoads]

Would you believe something so innocently addictive as a BlackBerry could cause -- in addition to antisocial tendencies, BlackBerry thumb, cranial trauma (over and over), and government panic -- your poor employer to get hacked? Well believe it. At this year's DEFCON Jesse D'Aguanno of Praetorian Global demonstrated a program called BBProxy that can cause your RIM handheld to give malicious intruders access to your remote network by tunneling through your device's link to the mail server mothership. And, as anyone who's ever done any computer security stuff knows, rarely are companies' soft, warm intranet-underbellies well guarded against skilled internal attacks. What's worse, BBProxy can easily be delivered to your vulnerable virus-scanner free handheld via email. Or maybe it's not as bad as it all seems (well, we hope so anyway), but damned if we'd be opening any attachments on our BlackBerrys any time in the near future.