The Los Angeles Police Department has warned residents to be wary of thieves using technology to break into homes undetected. High-tech burglars have apparently knocked out their victims’ wireless cameras and alarms in the Los Angeles Wilshire-area neighborhoods before getting away with swag bags full of valuables. An LAPD social media post highlights the Wi-Fi jammer-supported burglaries and provides a helpful checklist of precautions residents can take.
Criminals can easily find the hardware for Wi-Fi jamming online. It can also be cheap, with prices starting from $40. However, jammers are illegal to use in the U.S.
We have previously reported on Wi-Fi jammer-assisted burglaries in Edina, Minnesota. Criminals deployed Wi-Fi jammer(s) to ensure homeowners weren’t alerted of intrusions and that incriminating video evidence wasn’t available to investigators.
before getting away with swag bags full of valuables
So just look for the guy who looks like he’s just been to four different network admin conferences?
Bill, where did you get these 37 easy buttons?
However, jammers are illegal to use in the U.S.
What is the point of adding this bit for an article about burglaries?
Ostensibly harder to obtain when they’re illegal to stock and sell retail.
Same reason why you see folks in Japan and the UK obsessed with knife crime rather than gun crime. Obtaining a gun is more difficult to do legally, so fewer people carry them.
Because Californians love writing laws as a knee jerk reaction to the crime de jour.
Some pearl-clutching local will go to their state legislature and demand that WiFi jamming be banned despite the fact that the FCC is all over that shit. They keep passing redundant gun control laws in the same way for the same reasons.
While I don’t dispute that California has a tendency to have obnoxious firearms law:
https://legalbeagle.com/7402613-california-sword-law.html
Surprisingly, it’s entirely legal to carry a sword in public in California, as long as you are the wearer is not brandishing it or concealing it. In other words, if the sword is carried in a sheath suspended from the wearer’s waist, it is legal to have in public.
That being said, from memory going through California’s code, I believe that they explicitly have katana restrictions, along with some other restrictions on Japanese weapons, probably for the same reason that a number of states have switchblade restrictions: there were movies that hyped up the “gangster” aspect.
kagis
Hmm. No, and it looks like the nunchucks ban was repealed during the last few years, so they may have re-legalized katana carry along with that.
https://usanunchaku.com/california-legalized-nunchaku/
For over 50 years the state of California has made nunchaku illegal or restricted to only state licensed martial arts schools. As of 9/30 2021 this restriction in California has been repealed with the passing of CA Senate Bill No 827 and has resulted in California Legalized Nunchaku for everyone.
Now all California residents may purchase nunchaku without restriction or needing to be a member of a martial arts school training in the art of nunchaku. Here at American Nunchaku Company we welcome our new and old Californian customers and invite you to stop by and check out our collection of custom handmade nunchaku.
Shruikens – ninja stars – remain banned in California, though.
One can but imagine the plague of ninja being held back by this legislation.
They should make burglaries illegal too!
Because it’s relevant? Is this not factual information that readers may or may not have known?
The availability of hardware changes by a not-negligent degree based on the legality of acquiring it.
Curious readers likely find information indicating that these shouldn’t be readily available at your local big box store to be pertinent information.
It does and it doesn’t.
Any microwave with the door rigged open is a super effective Wi-Fi jammer. Everything coalesced on 2.4GHz instead of licensing their own radio spectrum making absolute mountains of overlap. It’s harder jam nearly everything else. ( Not much harder, software radios are super cheap, but you at least need more electronics knowledge than a screwdriver and tape. )
Because jammers are not inherently burglary tools. It provides extra information about the technology in discussion.
Me being cheap pays off; wifi cameras are expensive as fuck so I just have wired ones that don’t do anything on the Internet.
In my big American metro area, the burglars usually mask up and roll in with swapped plates, a car they stole, or a car they got off a Kia boy for $100-$200. They’re tough to catch in the act or identify with video surveillance, even with a new hardwired or pre-WiFi hardwired system.
While still hating this living dystopia, I do appreciate some of cyberpunk headlines we get.
That’s one of the reason I went with a PoE camera. Just make sure your network is isolated so people can’t connect to your internal network from the camera Ethernet cable.
Or vice versa, connect to your cameras from the rest of your network.
This is one of those things I thought would always remain firmly within the realm of science fiction. Watching movies and reading books growing up, movies like “The Matrix” and books like “Snow Crash” and “Neuromancer,” I’d always be fascinated with high tech burglary. The idea that one could intercept communications, jam frequencies, or anything of the like, always just seemed a bit too out of reach for modern day criminals. And yet, here we are.
A jammer is less sophisticated than a crowbar. It’s not like the burglar designs it themselves. Nor are they hacking your network to gain access, they just shut everything down.
It’s actually not that high-tech… Like jamming a wifi signal is basically like just shouting over someone to prevent them from speaking (or at least from being heard). To make one from scratch, you need a little bit of technical prowess, but it’s definitely a beginner project… But to use one, you literally just turn it on, and maybe choose a frequency. They’re widely available and cheap.
There are pretty cool sophisticated digital crimes out there though, so take heart!
I would think most wifi jamming is just deauth attacks. It is much easier to just channel hop, enumerate clients, and send them deauthentication packets.
This way you don’t need a particularly powerful radio/antenna, any laptop/hacking tool with Wi-Fi is all you need. There are scripts out there that automate the whole thing, so almost no deep knowledge of wifi protocols are required.
WPA3 has protected management frames to protect against this but most IoT cameras probably don’t support WPA3 yet.
That’s a relatively sophisticated attack though, and like you said is dependent on versions of WPA. It’s easier from a hardware perspective but more complicated software.
A 2.4 and 5ghz jammer is just simpler. Turn it on, everything fails. Even stuff that doesn’t talk Wi-Fi like Zigbee. Throw 400 and 900mhz on there too and now even residential security sistems will be frozen. It’s just simpler to use brute force for something like this.
I’m curious if these are actual jammers or just deauth devices.
It also seems really risky because I think we have three different bands Wi-Fi devices use now?
It’s all just radio signals.
Radio can be delightfully complex. I can’t help but be curious.
Oh I agree. It’s very cool stuff. It’s pretty amazing what we can do with it.
What do you mean actual jammer? If it puts out RF at a power level greater than the surrounding environment it is a jammer, correct? I would think for this attack to work you could just target the camera freqs used, you don’t have to target the whole home’s WiFi network. Probably a narrower range to focus on.
I don’t think it’s that simple. The newer Wi-Fi standards are broadband (something on the order of 1GHz wide!), so the required power spectral density to block Wi-Fi across all channels is pretty extreme. I don’t think you’re doing that for $40. We should also keep in mind the standards were designed to operate in environments with other unlicensed devices and in the presence of interference.
If you just want to target the frequencies the cameras are using, that would require a little bit of research skill that I think would elude most criminals. Also, some routers will change frequencies if the interference is bad.
If I were building such a device I would use off the shelf Wi-Fi hardware and send deauthentication frames to any nearby stations. But even with this approach, there are devices that will ignore such frames now because it’s been a problem.
Lol. None of my smart devices will connect to anything other than a 2.5ghz connection. Only my TV will accept 5g. The range is MUCH narrower than you think. Then figure in that the top 5 or 6 companies provide hardware for 90% of peoples home installations and that pool becomes even smaller. Also, a microwave operates on the same frequency as 2.5 and was a common disconnection problem in the past.
This is trivially easy.
WiFi 6 camera probably exist, but most will use WiFi 5 or lower. Theres only 13 channels and of those usually only 3 or ever used due to band overlap.
back in the day, the trick was to cut the phone line, then shove the cut wire back in the phone box. wait for the police to come and see that there’s nothing wrong, then you go and burgle.
They’d be starving after waiting for 3 days.
All of my cameras are hard wired. It’s going to take a lot of power to jam those.
You’d be surprised. A CB radio with a high wattage amplifier is enough to scramble analog hardwired cameras when its keyed up.
I regularly transmit 100 watts on HF using a dipole over my house. That’s never knocked any of my IP cameras out. It’s going to take more power than that, especially if you want to stay far enough away that the cameras can’t get good video of you.
I’m talking semis with ~1000 watt linears. And analog hardwired cameras. I can watch it happen at work.
That’s why wireless security devices are a joke. And it is not only WiFi, this is BlueTooth and other protocols like that, too.
Good security (and common sense, too) would be to have such devices wired up. And check the spectrum for jammers and raise an alarm about that, too.
Worked at an old job where one guy, that had access to the router settings, would disable the Blink Cameras so he could forge his time cards.
Owners ended up realizing the cameras would only be disabled when he was on shift.
I worked at Walmart ages ago and one of the overnight assistant managers would do this and then steal cash out of the cash office until he finally got caught.
Why did they specifically mention to “secure home DVR recorders”?
Other than potentially losing some TV or movies, is that really a big deal next to the other items they mention? It seems really odd to mention one of the least important things.
No. Think about it. Where is all the video from those cameras going? It is digital video, which the homeowner probably wants to record and playback… Many home security setups, particularly those that don’t rely on a cloud service, are basically a DVR back end with a security focused UI.
I’ve never heard of used outside of a cable box. I didn’t know security setups would be called that.
But with that information it makes sense.
You made me one of the 10k today
Physical locks, physical keys. We are collectively becoming too “smart” for our own good
Not sure how that’ll help with doorbells and cameras not working?
Sick, where do I get those jammers?
I’m not gonna rob anyone, I just don’t want cameras working nearby me.
You do realize it stops wifi in general from working, not just the cameras
It doesn’t even stop the cameras, which would continue to record and save in their SD cards locally.
Ones that have that feature. Some popular cheaper brands (e.g. Ring) the individual cameras can’t support SD cards but the base station can but they need wifi to be able to do that.
If I’m out in the world around unfriendly cameras I’m probably not on Wifi anyway. And yes, I know all the reasons they’re illegal, this isn’t completely serious.
Smash microwave oven window and you got a very powerful jammer
