I came across a study by Lookout Inc. that listed the five places where your mobile device; or like we said in the olden days: phone, is likely to get stolen. They are:

1. In a restaurant 2. In a bar 3. At work 4. On public transportation 5. On the street

So, they basically are saying that anytime you leave the house your phone is likely to get stolen. So if you're living life like Sandra Bullock at the beginning of The Net you should be OK.