From The Survival Mom:
Whether you are an urban prepper or are perfecting a homestead, upgrading the locks on your home and making sure they are installed properly is one of the most overlooked, least expensive, and most effective ways to harden your security.
I believe the best way to keep the bad guys from getting your stuff is to keep them out in the first place. This is the job of a good commercial quality lock and NOT your average home alarm system. Alarm systems only let you now when someone got in – they will not keep them out. (Unless you are taking about perimeter defense systems – which I am not.)
Not all locks are created equal. The lock on your doorknob or leverset is not strong enough to withstand breaking and entering. Neither are the small screws holding the hinges to the door frame.
You need an ANSI Grade 1 deadbolt on every exterior door, the door from your attached garage leading into your home, and on every door leading to your stores. Period.
Unfortunately, most common residential locks are only...
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