garage keypad code security
 

So a friend of mine gave a trusted contractor her garage keypad code so he could get in when she wasn't home. He called her back and said he knew exactly what her code was because those keys were cleaner than the others! He advised her to clean all the keypad keys regularly. I'm doing mine right now.

How many combinations are there when using 4 digits? He did not know exactly what the code was and no need to keep them clean.

24.

Speaking of garage codes, be sure to keep whatever code the builder/previous homeowner gives you. You'll need to check the manual for your opener and delete that code and then add one of your own. The builder told us that we could add our own code. Per the manual for ours, one code DOES NOT overwrite the another code. The keypad will keep 2 sets of codes. He didn't tell us that but I happened to find it when I read the manual. If the builder has the code, I assume his workers/sub-contractors may also have it. He may use the code on all of his houses too. It would be hard for him and workers to keep up with several codes. If there are 2 codes entered and you add a third, I'm not sure if it will overwrite 1 of the 2 or just not accept it. Didn't work on that issue. We have a code for us and another code to potentially give to others if necessary. If we give one to someone else, we plan to change it afterwards.

Having a keyboard is nuts. There are another ways to beat it so I've heard. Get rid of it Pronto Prente!

Actually there are 10,000 combinations. You calculated permutations based on 4x3x2x1=24

The question was how many combinations using 4 digits. In the original post, it said the person knew from the wear pattern which four digits were used.

If using 0-9 there are 10,000 combinations. Using 0-9, there are 5040 4 digit combinations.

No, that's picking out 4 numbers of 0-9...

If you already know which 4 separate numbers are being used (ie, the clean ones), it's only 24 combinations...

smh.... clean keys, don't clean keys, seriously there are several other methods to do it. it all comes down to whether it's worth anyone's time to do it and who is around. Facts are you can cover your house in concrete - still won't keep them out. VPN all you want - still won't keep them out. etc.

Be sure to check if your 4 digit address works as a code. I was told by one builder that all of them are set to the address during the build phase. The garage door company came out on a warranty call and confirmed that to me. If you have two doors, you can set one code for one door and another code for the other door.

Thanks for catching that error.

Since a sophisticated thief can see what keys have fingerprints, I periodically touch all keys on any combination lock.

Probably should clean your fingers.

:ohdear:

Wi-Fi garage door opener & a doorbell camera
 

I installed a WI-FI doorbell camera and and a WI-FI garage door adapter. No need to replace the door opener with the Nexx garage door opener. The Nexx works like any other garage door button except it's an app on your phone.

So, the contractor either show up at your door, you recognize him using your doorbell camera or he calls you when he's there, and you open the garage door. If the said contractor only needs to get into the garage, you can have your house door locked, and just open the garage door itself. The app is Nexx Home. The door opener wires in parallel to your button. You can also set up notifications if the door is open or opened. How many of us have driven off and gotten a mile away to ask ourselves, DID I CLOSE THE GARAGE DOOR? Pull over and check your phone. Close it from where you are.

It does take a 2Giga bit network. Xfinity's routers are set up with 5Gb, but they have both available on their routers.

Nex has some great videos on how to set them up.

Really
 

So tell us what you "heard" and from who.?