Bypassing Alarm System

Jablotron (www.jablotron.com) Profi system being bypassed.

The purpose of this video is to show how easily some alarm systems can be bypassed. Some of you may think that it's a stupid idea to reveal vulnerabilities of security systems, but I believe it's better that everyone knows - not just the burglars. Hopefully this will encourage manufacturers to further improve their products and also help end-users to better understand what they want from their system. I would like to hear comments from other wireless alarm system owners!

In my mind, alarm systems have two missions:
1. Local alarm (when the user returns, he can - by looking at the system - notice that an alarm has occurred while he was away)
2. Remote alarm (notifying predefined persons through SMS for example)

This demonstration prevents both from happening. Works with a PIR detector too.

This particular system is approved by my local insurance companys.

Category:

Science & Technology

Tags:

• circumventing
• home
• security
• alarm
• system
• wireless
• bypassing
• bypass
• jamming
• radio
• frequency
• 433
• mhz
• pir
• door
• magnet
• detector
• jablotron
• profi
• ja-63krg
• ja-60n
• ja-60p
• hälytin
• murtohälytin
• hälytysjärjestelmä
• murtohälytys
• hälytinjärjestelmä
• dsc
• alexor
• defeat

[SteamFox]

@SteamFox I can now confirm that DSC Alexor behaves just like the system in this video. Might do a video at some point.

[lawzalexander]

Good demonstration of the pitfalls of some of the lower-end security systems.

More sophisticated wireless alarms operate in the 800-900 Mhz region. Not only is equipment transmitting in this band harder to find, but many of the devices also hop between channels to escape any jamming - and trigger the 24h tamper circuit should anyone attempt it.

[SteamFox]

@jungletrax Youtube doesn't show which comment you're replying to, so I'm not sure what you're saying.. But yeah, cutting a wire will cause an alarm.

[jungletrax]

@SteamFox Cutting cables on a wired system will just put the alarm into tamper, which will create and alarm. And no, shorting different pairs together wont work unless its diy, as most systems are EOL nowa days.

[analyzingfunny]

@analyzingfunny yah, just google "cell phone jammers"

[SteamFox]

@analyzingfunny Sorry I'm not following.. Jam cell-phones?

[analyzingfunny]

@SteamFox really, only a foll would use wireless. What do you think cell-phone signal jammers do?

[SteamFox]

@analyzingfunny No. Badly implemented wireless is stupid. It doesn't really matter whether the system communicates wirelessly or not. Wired systems can be cut just like wireless systems can be "cut" with jamming. What matters, is what the system does when it detects that there's a communication fault.

[analyzingfunny]

Still, this proves that wireless are stupid, and can be jammed.

[SteamFox]

@localizeractive Thanks for the info, it seems the 868 only applies to Europe (DSC makes different mhz versions for different markets). The exact frequency is 433.92 which both (US) Alexor and the alarm in this video use. I agree with your last sentence, but is Alexor any better?