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Build Your Own Bluetooth Sniper Rifle

Jim Buzbee writes "I don't think I'd do it, but these guys built a Bluetooth Sniper rifle, went to the roof of a downtown Los Angles skyscraper and pointed it at nearby buildings. See what they found, and if you're so inclined, they'll show how to build your own and maybe, just maybe, you too can snag Paris Hilton's address book." (Which was not snagged via Bluetooth snooping, as the article points out.) This version looks a bit more polished than the one mentioned last August.

15 of 309 comments (clear)

  1. Frightening, ? by fembots · · Score: 4, Interesting

    After the DC Sniper incident, this gave me a fright as I thought someone has built a bluetooth-guided sniper rifle, which indicates when your bullet is aligned perfectly with your target's bluetooh tag, and those who auto-accept Bluetooth pairing are in trouble.

    Seriously though, I wonder how many people do auto-accept BT connections? My PDA only accepts known pairs, so you need to physically talk to me to pair you up for the first time.

    The friendly article seems to mentioned the "success" in BT detection, but didn't go in details of successful connection. It's like car thieves claim to detect 20,000 cars in the city centre, but didn't say how many were unlocked.

    1. Re:Frightening, ? by pi_rules · · Score: 2, Interesting
      Yeah, no kidding! Gosh, if someone aimed EXACTLY at my blue-tooth cell phone, held up to my ear, by the time the bullet traveled 300 yards it would be AT LEAST 12 inches lower and 2 or 3 inches to either side! HA! The joke is on them!
      You're pretty close actually, accoding to Sniper Central typical .308 168 grain bullets when zeroed at 100 yards will drop about 16" and have a drift of about 7" in a 10mph crosswind.

      Now if you were to go with the .223 cartridge as the DC "Sniper" did you're looking at about 10.5" of drop and 14 inches of drift in 10mph crosswinds.

      Just an FYI.
    2. Re:Frightening, ? by Aranwe+Haldaloke · · Score: 2, Interesting

      "Fear not"? While a disregard for ballistics might make the sniper miss your head, the bullet could as well end up going through your torso or legs or what-have-you.

      It's like saying, "dude, I'm gonna die," and someone quickly correcting you, "no, you'll just be lethally wounded with an actual chance of survival."

    3. Re:Frightening, ? by mollymoo · · Score: 3, Interesting
      Basically, humans should not mess with nature, let it be itself.

      What are we, aliens? No, we're animals from the planet Earth. By far the best damn animals the planet has ever seen, but still animals. We evolved. We are part of nature. The Interweb is just as natural as a beaver's dam.

      --
      Chernobyl 'not a wildlife haven' - BBC News
    4. Re:Frightening, ? by juhaz · · Score: 2, Interesting

      Anatomically modern humans have been on the planet for AT LEAST 100000 years, possibly even double, and hominids for several million. That is clearly long enough time for foodchain to adapt to presence of humans, to a level that abruptly removing them from equation would cause huge changes.

      How did you think "animals clearly took care of themselves"? Herbivores decided that their population got too large and dropped dead? Well, Sherlock, they were killed, much more brutally, by other animals. Other large predators, be it wolves or cave lions or sabertooth tigers were dealing with the population problems of herbivores, we have diminished their number to so low as to be irrelevant in that role any more, and taken the place they previously inhabited as the top of the foodchain, which clearly includes keeping populations manageable as well.

  2. Bluetooth by SteelV · · Score: 2, Interesting

    It seems like Bluetooth is in almost EVERYTHING these days (the Power Book I recently ordered, my new cell phone, etc. all are enabled). Is this merely an extention of the ubiquitousness of the technology? Or is there some inherent flaw that makes Bluetooth vulnerable? I'm inclined to believe the former -- that a properly secured Bluetooth system would be safe -- but I don't know much about the technology.

    Any experts in the house (of course there are, we're on Slashdot!).

  3. The Jackal could have used it... by NightWulf · · Score: 3, Interesting

    This way the secret service could have identified him, he's the guy with the annoying blue spotlight shining out of his ear while yelling "Can ya shoot her now?"

  4. How to deal with that? by Eminence · · Score: 2, Interesting
    It's not a trivial question. On one hand airwaves are free for anyone to receive. On the other if someone would steal data from my BT enabled device and went to publish it on the web (Paris Hilton case) I would very much like to get him punished for that.

    In other words, users are generally right in their expectance of some form of protection of their privacy. You could argue that BT devices should have been built in a way that would prevent any of that from happening, but it's easy to criticize with hindsight. I think some line in the sand would have to be drawn on this one too, the problem is that it would be technologically ignorant lobbying-prone politicians who would do the drawing. It's enough to look at the case of good, old-fashioned radio scanners to foresee results.

  5. Re:I guess by ThreeE · · Score: 3, Interesting

    To add the parent's correct posting, sonic booms do occur subsonically local to the aircraft. The airflow is often accelerated to sonic levels as it travels over portions of the aircraft wings. This is actually one of the major causes of the "sonic barrier." These local sonic exceedences can screw with the lift, causing the aircraft to lose control.

    A gentleman by the name of Chuck knew this and said, "So what. It's worth the risk."

  6. conneting to my phone by varmittang · · Score: 2, Interesting

    When connecting something to my phone, I have to enter a pin code. Like my PowerBook, I have to physically tell the phone to allow a contaction via bluetooth, then enter a pin code that the PB gives into the phone to have them conneted to eachother. I even had to enter a pin code into my phone when connecting my headset. So which providers just let anything connect via bluetooth, or am I still open to attack?

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  7. The courts have dealt with similar issues by evolutionaryLawyer · · Score: 2, Interesting

    True the airwaves are free and many times the courts have supported the rights of individuals to intercept open, unencrypted broadcasts. But the key is the unencrypted and the broadcast. Look at the old satelite dishes, you could latch on to most signals, but if they tried to scramble it then it was stealing.

    If it is encrypted, you cannot decrypt it, because it is obviously not yours. If it is not broadcast, i.e. you use RF to gain access to a system and gather information that is not being broadcast, in this case anything other than basic ID info, it is illegal.

    On the other hand, courts are also starting recognize leeching WiFi as theft as well, so who knows where this is gonna end up.

  8. Why make it look like a rifle? by Mal-2 · · Score: 5, Interesting

    If they had made this look like a telescope rather than a weapon, and mounted it on a tripod, they could have pointed it just about anywhere they wanted and nobody would have paid a whole lot of attention to them. The rifle-like appearance only served to make the device look much more dangerous than it was.

    There are times when the form factor of a rifle makes perfect sense (rifle stocks for cameras, for example), but many others where it just DOESN'T. This is one of the latter group.

    Mal-2

    --
    How is the Riemann zeta function like Trump rallies? Both have an endless number of trivial zeros.
  9. Our antenna thingy by po8 · · Score: 2, Interesting

    For a different take on the antenna "gun", check out our "Trackmaster 2000" 802.11/ATV rocket tracking antenna for the PSAS launch vehicle.

  10. Spelling mistake! by Anonymous Coward · · Score: 2, Interesting

    It's supposed to be a Bluetooth snooper rifle! Heh!

  11. Dangerous game by Peaceful_Patriot · · Score: 2, Interesting

    Is it just me, or does it seem a little dangerous to be lurking on city rooftops with a very realistic looking rifle, pointing it at nearby buildings? It seems like a good way to find yourself surrounded by very real rifles that fire very real bullets and they are not aiming at your Bluetooth!

    --
    There is nothing so powerful as an idea whose time has come.