Pulling a Bait and Switch
This popular pickpocket tactic works especially well when used in combination with one of the other vulnerable situations on our list, such as a public table or back pocket. Basically, a simple team of two pick a mark. One of them creates a distraction, like dropping a purse or spilling a drink right in front of the mark to distract them and hopefully get their full attention. The other thief then snags the iPhone and disappears into the crowd before anyone knows what happened.
Fortunately, this tactic is really only attractive to thieves working in busy public areas, so be aware of the risks when using your phone in these places, and always keep it secured.