As I have been told for yrs by security advisors:
Be conscious, not paranoid.
This type of "crime" happens in every 10+ million people city. You have the bird poo, the "i found this ring on the floor", "what time is it?", pushing you into the metro and pulling the wallet out of your pocket or purse, etc, etc.
A concerning security issue here is drugged people, especially young kids, who can't control their aggressiveness. But pick-pocketing happens in every large city in the world, even Zurich (and it's not that big).
Be conscious, not paranoid.
This type of "crime" happens in every 10+ million people city. You have the bird poo, the "i found this ring on the floor", "what time is it?", pushing you into the metro and pulling the wallet out of your pocket or purse, etc, etc.
A concerning security issue here is drugged people, especially young kids, who can't control their aggressiveness. But pick-pocketing happens in every large city in the world, even Zurich (and it's not that big).