I noticed red wax on my daughter-in-law’s front door lock. She’s been living alone since my son passed away. Should I be concerned? She mentioned removing it once, but it has reappeared.

Imagine coming home and spotting red wax on your door lock. It’s unexpected, unsettling, and easy to dismiss — but you shouldn’t. While harmless explanations exist, red wax on a lock can sometimes signal that someone has been assessing your home.

In certain cases, criminals use discreet markers to communicate with one another. Just as coded symbols have been used historically to mark vulnerable targets, wax can serve as a subtle indicator that a house has been watched or deemed worth revisiting. Red wax is particularly effective because it’s easy to apply, blends in with many metal surfaces, and can be overlooked by anyone not paying close attention.

If you discover something like this, your first step should be to inspect your property. Look for scratches, unusual marks, or any signs of attempted tampering around doors and windows. Even if nothing else appears disturbed, it’s wise to replace or upgrade your lock. High-security or smart locks provide added protection and may discourage anyone who was considering a break-in.

Next, consider installing visible security cameras. They act as a strong deterrent and can provide crucial evidence if suspicious activity occurs. Talking to your neighbors is equally important; shared awareness helps identify patterns and protect the entire community. And no matter how uncertain you feel about the wax’s meaning, notifying local police ensures the incident is documented and allows officers to monitor potential threats.

Ultimately, red wax on a lock is a small detail that could point to a larger concern. The key is not panic, but vigilance. Pay attention to unusual markings, secure your home, and stay connected with those around you. Your home is your sanctuary — and protecting it starts with awareness and quick action.