. >> joining us now to talk about the risk and how you protect yours brian vecci, the cyber securityxpert with v rah ronis. good to talk to you today. we saw how people can be tracked even though their location services, their gps is turned off. were you surprised to see if >> not at all. we carry around super computers that are gathering all kinds of information and when you turn off location services. as you saw, the phone is gathering a lot of other information, combine other information along with pubically available information like weather reports and maps, you can figure out where somebody. >> what's the biggest threat knowing that we can be tracked even if we're turning off location services? >> the biggest threat is like anything else. your phone is gathering a lot of information beyond just having a microphone and camera, and you have to be aware of who is getting that data and potentially how it's being used. >> is there anyone who is more vulnerable you're assuming that if you go in you know how to put it in airplane mode or turn off location services? there's a lot of pe