On Fri, Jun 6, 2014 at 8:42 PM, wrote:

.... Unfortunately, using airplane mode is not enough to keep you from being tracked. You must remove the battery.

i can confirm this directly. a ride into Vegas for DC 20 demonstrated that Alexander's toys have the ability to inject into receive only (airplane mode) and tip to exploitation. (baseband exploits being exceptional at leaking keys, elevating privs, and erasing tracks...) battery out or faraday caged the only effective options. (or as Snowden demonstrated, put in a fridge to avoid scrutiny and audio capture the best idea. non-serial tower associations are an anomaly alerted and acted upon.)