Finding red wax on a door lock is unsettling because it’s out of place. While it can have harmless explanations, unexplained marks deserve attention.
In some cases, small markings are used to test whether a home is noticed or monitored. Wax is discreet and easy to ignore, which can make it useful for that purpose. The safest response is to document it, remove it, and watch for it returning.
Check other entry points, talk to neighbors, and consider reporting repeated signs to police. Simple steps—better locks, lights, cameras, and less predictable routines—can reduce risk.
A mark doesn’t mean danger is certain, but noticing and responding to small details can help prevent bigger problems.
