Prevent theft - put a purse on the chain
Whether in a backpack, fabric bag, in a handbag, shopping bag or trouser pocket: I always put my wallet on the chain.
It happened to a friend years ago that her purse was torn from her hand in front of an ice cream parlor with street vendors when she was about to pay. In the dense crowd of the city, the perpetrator could flee unmolested on his bike.
A few steps give at least a little security and protection:
In the purse a small metal eyelet is punched (who has no rivet tongs, it makes the shoemaker), to this comes a commercial chain with 2 snap hooks, the other end can be attached to the bag. I prefer the zipper, because you can not see the chain, which can not be avoided when attaching to the handle.
Buy now 
Vococal Replacement Shoulder Strap Chain Strap Purse Handle Switch DIY Handbag Chain 120cm M? 5,99 ?
Care must be taken that the chain is long enough so that the wallet does not have to be chalked off in use (for example, if the bag is worn too low or across the shoulder).
