Be careful: if you find a blank piece of paper in your mailbox, it could mean this
The “white paper” method (sometimes replaced by a piece of plastic or an object placed under the doormat) is used to check if someone is home. The principle is simple: someone places the object visibly in the mailbox or in the crack of the door.
If the paper is still there after 24–48 hours, it means that no one has picked up the mail or opened the door. For thieves, the signal is clear: the home is unoccupied .
However, if the paper disappears, they know that someone is home, and they move on to the next object.
A visible security system, such as a camera at the entrance, can often deter and detect these preparatory checks in time.
Other subtle signs that should make you vigilant (2/4)
