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User: silentblackhawk

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  1. Re:Wireless = less secure on D.I.Y. Home Security · · Score: 1

    I once read a nice piece of work by a kid in the UK who designed a device that "sniffed" the same ID/RF code that the wireless sensors would give and record them to computer. Im not sure what he used to do the actual frequency snooping, but what i found intersting was the way he figured out to render the sensor useless. As i am aware from what my father told me about his DSC system, when a sensor's battery is about to fail it sends a message to the main router where all the information is taken in and processed. The guy would actually sit by a sensor and a sniff out multiple signals and feed them into a program that would find a replicate of the algorythm that the router was expecting from the wireless device. It would them send out a battey fault message, causing the system to accept the second replicate algorythm as the new one. Im not sure if I got all the data right, but it seemed to me like he had figured out a way to the systems core programming. Im not very familiar with security systems, but is it true that when a battery is replaced in a wirless device, there is a "pairing" function to assosciate with that device again? Something much like a wireless mouse with a computer. It seemed like a sound idea to me, and I know that my security system at home seems to have many issues with the way wirless sensors interact with the router. I even remember once when i was 16 I had created a spread spectrum device for my stereo that used 2.4ghz to stream music. I was calibrating it at around 1 o'clock when it set off all of the wireless sensors in our house. Long story short, it caused the police to come to our house with a report of Glass Break from DSC. Im not sure if that specific code came from a certain frequency during calibration, or what.

  2. Re:Disconnect on Air Force To Rewrite the Rules of the Internet · · Score: 1

    Actually you can still "hack" into networks whether they are connected to the internet or not. For many years now, hacking has been possible via power lines. There are many rumors about worms designed to spread via the worlds power grid. The truth is that there are ways to hack through power, but for obvious reasons it doesnt work out well. First off, hacking through power raises many problems. The obvious problem is that power to the host has to maintain at least enough energy to physically power the device its self. We have all unplugged a laptop cable and noticed that the light on the battery charger itself will stay on for a little while even after unplugging it from the wall. The same concept is applied when hacking via ac. Alternating Current moves from positive to negative polarity about 60 times each second, hence the name Alternating Current, and therefore opens the oppurtunity to shut down power to the host a few dozen times per second. An experienced hacker can write a program that can be sent to a hosts' motherboard via their onboard power supply, and install a program on their system to interpret these power fluxuations as none other than binary. Obviously the volume of information that can be handled through power depends on how much voltage is required to run the host. Other obstacles to tackle are knowing the address of your host on the grid. Power can be re-routed to neighboorhoods based on a mapping system that is very similar to Longtitude and Lattitude, thus your search can be cut down using a program to compute how far the power flux has traveled and for how long. Another thing to remember is that your neighborhood's power breaker, or power distribution, unit has a physical address that is sent back to your power company that enables that company to see if their unit is online or not. These addresses are verified by simple computers that are tied into the power companies' grid system to shut down power if a box blows or a line goes down. With a lot of experience, and some kick-ass gear, it is very possible to hack via power and find even the most singular networks. Keep in mind that this is not unknown to the government, as they created it, and you should watch out for the rocks to leave unturned. I find it interesting that the airforce it "tired" of countless attacks on their networks. You dont hear the greater part of the American population bitching and moaning that the man is listening to my phone call everytime I order pizza. I guess we just have to hope the new "laws" dont eliminate sites like this where we can enjoy each others company. After all, we nerds are quite dangerous, arent we?