Only use this information to open a gate/fence/locked door that you have legal permission to open. This likely constitutes breaking and entering and it would suck to get caught for that. In addition to the things I mentioned in
this post, anyone who spends any amount of time in a city needs to keep one of these keys on them:
It is not illegal to own these keys, they are not a controlled item and possession of one is not a crime (although you should always consult a lawyer in your local jurisdiction to make sure that applies to you). I highly recommend buying only the OEM keys that have DKS stamped on them. With this key, you will be able to open up the DoorKing panels that are widespread on apartment complexes, highrises, and gated subdivisions, and other controlled access areas:
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The default lock has only been replaced twice out of the hundreds that I've encountered. Most of these locks don't get opened often, so be a bit forceful when inserting the key. When you get the panel open, you want to use a paperclip (or other short jumper) to bridge the terminals 1C and 1NO (unless dealing with a magnetic door lock, then it's 1C and 1NC):
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I would never suggest using this information for any untoward purposes, but imagine how someone caught up in a "kettle" during a police operation could theoretically escape off of the street level and put a locked door between them and the people who are trying to curtail their freedom.