Inspect your home for other signs of surveillance or tampering:
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Displaced window screens
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Objects left in front of the door to test for movement
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Unfamiliar flyers or cards that may be part of a tactic
4. Upgrade Your Home Security
Take steps to strengthen your home’s defenses:
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Install a smart lock or reinforced deadbolt
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Add a video doorbell or motion-activated lighting
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Use window locks or shatterproof film
5. Talk to Your Neighbors
Ask around to see if others on your street have seen similar markings. Community awareness is a powerful crime deterrent.