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  • This is the lock picking lawyer.

  • And what I have for you today is a monkey control magnetic door lock controlled by a combination fingerprint R F I D control panel.

  • This system, which sells as a set on Amazon for $170 was sent to me by Mark in Cambridge, Massachusetts.

  • So, Mark, thank you very much for the generous donation.

  • I set everything up on this demo board, then wired according to the manufacturer's instructions.

  • There's a few different things here, so let me walk you through the various components.

  • First, we have the magnetic lock itself, which, according to the manufacturer, can hold a door closed with £600 of force.

  • Then we have the lock controls.

  • This will be on the external side of the door, and it could be activated in a few different ways.

  • The first is by using a fingerprint.

  • I can see it released the magnetic clamp.

  • We can also use an R f i.

  • D tag.

  • And finally we can input a numeric code.

  • I'm going to use user number one with the set password of 1234 Okay, The next thing we have is the request to exit button.

  • This goes on the inside of the door and unlocks it when someone wants to get out.

  • And the last item on the board is the power supply and control module.

  • Now all of this looks very impressive, but there's a pretty fundamental flaw with the set up that's actually very common on these standalone systems.

  • Ideally, the device on the outside of the door should read the credential and then transmit it to the secure side of the door for verification.

  • But that's not what's going on here.

  • This device captures the credential, verifies it and tells the door to open.

  • Essentially, what that means is that these wires are sending a no signal, and we need to change that into a yes.

  • Unfortunately, all we need to do it is a paper clip and the screwdriver.

  • Let me show you how that's done.

  • There is one screw holding the cover plate on.

  • As I'm taking it out.

  • I should note that some devices like this will have an anti tamper switch.

  • However, this one does not, and even if it did, they tend to be fairly easy to bypass.

  • So as I look on the inside, I can see four wires going into this, a red and black, which will be our power and ground.

  • Then we have a blue and orange.

  • Those blue and orange are labeled on the circuit board as and Oh and C O M N o stands for normally open and C O.

  • M is common.

  • So normally the circuit between these two wires is open.

  • Open the door.

  • We just need to close that circuit, and I'm going to do it by bridging them with this paper clip.

  • It's really just that easy.

  • So as you saw, despite the intimidating high tech appearance by passing, this is just a Z Z as opening a simple mechanical lock.

  • In any case, that's all I have for you today.

  • If you do have any questions or comments about this, please put them below.

  • If you like this video and would like to see more like it, please subscribe.

  • And, as always, have a nice day.

This is the lock picking lawyer.

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B1 INT door lock paper clip circuit credential magnetic

[1040] Fingerprint/RFID Lock Defeated With a Paperclip (Mengqi-Control)

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    林宜悉   posted on 2020/03/30
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