Not being a licensed amateur operator, didn’t test this, but we doubt thieves would have the respect for the law that an officer of the court does. Yes, a little remote probably won’t jam the system from a distance, but a cheap programmable dual-band transceiver like those offered by Baofeng would certainly do the trick. With the remote in close proximity to the system, he demonstrates how easy it would be to open a door or window and enter a property guarded by SimpliSafe without leaving a trace. As simple as that exploit is, it looks positively elegant next to ’s brute-force attack, which uses a $2 RF remote as a jammer for the 433-MHz wireless signal between sensors and the base unit. We’ve covered the system’s deeply flawed security model before, whereby SDRs can be used to execute a low-effort replay attack. The item in question is the SimpliSafe alarm system, a fully wireless, install-it-yourself system available online and from various big-box retailers. And when that device is an alarm system that can be defeated by a two-dollar wireless remote, it’s practically a responsibility. But when that product is a device that is ostensibly deployed to keep one’s family and belongings safe, it’s plenty fair. It seems a bit unfair to pile on a product that has already been roundly criticized for its security vulnerabilities. Instead, let’s take this piece of gray-area hardware for a test drive and see what makes it tick.Ĭontinue reading “Teardown: Mini GPS Jammer” → Posted in Featured, Radio Hacks, Slider, Teardown Tagged 555 timer, gps, jammer, NE555, RTL-SDR, vco Hackers have never been too choosy about the devices they investigate and experiment with, and there’s no reason we should start now. You know, as one does.īut we won’t dwell on the potentially nefarious reasons that this device exists. Maybe you’re out driving a tracked company car and want to enjoy a quick two hour nap in a parking lot, or perhaps you’re looking to disable the integrated GPS on the car you just stole long enough for you to take it to the chop shop. The only reason you’d want to jam GPS signals in and around a vehicle is if you’re trying to get away with something you shouldn’t be doing. Well, as far as I’m aware, there aren’t any. Now, you might be wondering what legitimate uses such a device might have. Shipped to your door for under $10 USD, it seemed like a perfect device to rip open in the name of science. Which is how I recently became aware of these tiny GPS jammers that plug directly into an automotive 12 V outlet. If you spend enough time trolling eBay for interesting electronic devices to take apart, you’re bound to start seeing suggestions for some questionable gadgets.
Continue reading “Speaker ‘Stun Gun’ Aims To Combat China’s Dancing Grannies” → Posted in classic hacks, Featured, Interest, News, Original Art, Slider Tagged anti-square dancing device, infrared, jammer, square dance, square dancing, tv-b-gone It’s simpler, and a bit less cool, than you think. The device created a huge stir on social media, as well as many questions about how it could work. The South China Morning Post has reported on a “stun gun” device which claims to neutralise speakers from a distance, in an effort to shut down dance gatherings. Naturally, a technological solution sprung up promising to solve the problem. Often the pastime of many middle-aged and older women, participants are colloquially referred to as “dancing grannies.” While the activity is relatively wholesome, some dancers have begun to draw the ire of their neighbourhoods with their loud music and attempts to dominate the use of public parks and recreational areas. One of the more popular social activities in China is group dancing in public squares.
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