But first, the person has to know that the door opens with a transponder, and where to find it... Even if the person knew that, reading these short-range transponders without being noticed would likely be very, very difficult. Especially if, for example, it is located under the skin on the wrist. When opening, you only touch the door handle; the reader is invisibly built into the handle and voilà, door open. However, this requires an independent power supply, otherwise it becomes inconvenient during a power outage^^
Exactly, the prospect of quick success attracts thieves. And if the door doesn't even have a visible lock, the choice is probably made immediately. Visibility and accessibility of the garden must of course be considered.
For me, it's not even primarily about high security, that's just a benefit. But never having to carry, look for, or forget keys again is already very interesting