The Trick Using Aluminum Foil on Door Handles

handle so any attempt to open the door will disturb the foil’s surface. If you later notice wrinkling or displacement, that can be a visible sign someone tried to tamper with the entrance. The foil acts as an inexpensive tamper-evidence marker.

The foil also produces an audible cue: crinkling noise when touched. That sound can give you immediate warning continue reading …