LAPD warns residents after spike in burglaries using Wi-Fi jammers that disable security cameras, smart doorbells
2 years ago by lemme in to c/technology
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.
Even beyond renting, installing a wifi camera is SO much cheaper than running Ethernet all over your house. And if you need it run through an external wall? Even more money.
Not if you DIY. I just finished a project, not only wiring all rooms for Ethernet, but PoE for 10 exterior cameras.
You can get 500ft Cat 5e boxes off eBay for like ~$20, an extra long 1/2 inch drill bit (for punching through the exterior wall) was like another 20. Most expensive part was probably the metal conduit for the outside runs (I decided to only have 2 or 3 holes to the outside and run the cables in the conduit along the soffit to converge to one of 3 exterior holes for final routing within the house. That was probably 150-250)
All in all after estimating for secondary costs, like screws, brackets, sealant, a caulk gun, ceiling bracket for ceiling routing indoors etc this project was probably <400, pretty cheap as far as home improvement projects go
Not that expensive to do it yourself. Getting a fish tape and a cheaper Ethernet termination kit would set you back at most $50. Only other tools you need is a drill and most homeowners should already have that. And a really long bit is cheap at harbour freight.
Yup, cost isn't the issue, time and patience are. In order to run cables down my walls, I'd need to wade through 2-3 feet of insulation fluff in my attic while stepping only on roof cross-beams, all with only like 7 feet of space at the center (way less at the edges). The cable and tools will only cost $100-200, but the whole process is a giant pain to actually do.
Even beyond renting, installing a wifi camera is SO much cheaper than running Ethernet all over your house. And if you need it run through an external wall? Even more money.
A bit of plastic trunking, an ethernet cable, and a long masonry bit for your hammer drill to get through the brick wall, oh and a little sealant, not that expensive, I believe in you!
I’m gonna fall through the ceiling :(
Lawful- Neutral renter reporting in:
- Fresh paint and a lot of putty hide a lot of sins
- Magic erasers ARE magic
- Home improvement stores just like sell door trim, hardware, etc and they’ll color match paint
- Most post-inspectors are looking for egregious issues or evidence of a bad fix/cleanup. That’s now your threshold for quality
I fixed an entire doorframe trim and drywall after the back door got kicked in - paint and putty are your friends
Renters have virtually no choice here. I hate it when people state this like it's some damn easy thing for everyone to do.
The real answer is caching. Instead of writing video to the cloud live and losing all recordings during a wifi outage, it should just cash the last 30ish minutes in case of failure to connect to the cloud. Then once the connection is up again, it just uploads the cached video.
My cameras are PoE going to an NVR but you can also slap SD cards in them to record locally. I'm sure there are some wireless options out there with this feature included. Unfortunately wireless cameras have another glaring flaw in that they only record on movement and I've heard of so many stories where they didn't catch any movement to start recording when something happened.
I have a few cheap cameras that can handle both WiFi and ethernet, they support an SD card, and they do continuous recording regardless of connection type.
I beg to differ not with that attitude. In most situations you can non permanently get a camera out a window or door without harming anything / risking deposit loss. Only where you have no windows near exit points and a windowless door. But even then you can still atleast have something internal to catch a break in (wired streaming to web).
Easy or not, wireless isn't secure.
I'm not saying this is what the backup batteries on my modem and in my rack are specifically for, but it would definitely prevent downtime from a Droney McTinFoil von Transformer scenario
That's a hell of a lot higher bar to cross than wifi.
Wireless "security" cameras are never a good practice.
Honestly, if I'm renting, I'll just get renter's insurance and not bother with doing any security.
As a homeowner, I'm going to do everything I can to avoid making a home insurance claim. As a renter, whatever, not my problem, the insurance can maybe sue the landlord for not securing things properly because it's their job, not mine, to keep things secure.
There’s no OSFA solution. Yeah, it sucks if you’re renting and can’t run cat 6 everywhere. All the same, you can still run a hard wired cam to a NVR/NAS in at least one location inside, but then you face the same difficulty anyone else does of securing the storage from theft - or you can have it upload to a cloud as quickly as is practical so you get off-site storage images and alerts of the theft.
There’s a lot of opportunistic thefts near where I live. Honestly, the odds of actually catching a good image of the thieves’ faces are petty low. If they know enough to jam the wifi, they also probably know enough to hide their faces. The thieves in our area all wear hoodies and hide their faces somehow, so all you get is the alert that someone is there and an image of a hoodied individual.
The landlord might have an incentive to protect their investment
Honestly super easy. I have a pet cam that records locally to an SD card and is accessible via wifi. A jammer wouldn't stop the recording. Also like 30 bucks vs 50-100-200 bucks depending on which ring cam you get. Certainly not weatherized but good enough for internal monitoring.
Honestly super easy.
Would you go so far as to say it's barely an inconvenience?
Yes, if you have a $10M villa in LA where you store your priceless art collection invest in hard security. For the average person who just needs video for the insurance company for when some meth head steals their bike from the garage, it's a great solution.
Honestly, deadbolts and keeping the garage closed would get that meth head to go to the next house.
If you send a claim to the insurance company for a stolen bike or something, you're going to pay way more in house insurance than whatever the bike cost. The only time you should be making an insurance claim is for a massive loss, like a fire, flood, etc. The video evidence should instead go to the police so they can track the perp down and maybe recover your stuff.
IMHO, it comes down to your risk, what will make you feel comfortable, and how much money you want to spend. Pulling Ethernet through the walls and patching drywall might not be something you care to do if risk is low.
Also, if someone really wants to not be on camera, they’ll wear a mask, turn the power off at the main panel, etc. That said, there are cameras that can run on battery and store footage locally when they can’t phone home to wherever they deposit video files.
My entire 12 camera system is ethernet only which feeds into my server closet and backed up with a battery that can run it for 5 hours. The video clips are sent to telegram for backup.
I guess my point is that there is no right or wrong camera system. It’s a balance between risk, convenience, and peace of mind / perceived safety.
I used design hardcore security checkpoint systems for the DHS, and even I have stupid WiFi cameras. I’m going to see diminishing returns if I go with a more old-school hardwired system. The people who do break in sprees in my area have been getting past me those things for decades.
Most people these days have either a ring doorbell camera or nothing. A very few people have real security cameras hardwired, and even fewer of those have more than 1 camera.
Also, about 1/4 of the ring doorbell cams need their batteries replaced.
PoE/CCTV is def the better option, but youre gonna be hard pressed to get regular folks to make the switch unless this type of burglary becomes endemic.
Yep. We have a mix of wifi/hard wired PoE. If you can handle crawling around in the attic or wherever, PoE is the easiest and best option. No need to run wiring to any sort of electrical box to power 110v for cams. Wireless is super-easy, but usually you have to pay for cloud services on top of that. Home hard wired with an NVR or NAS is the way to go.
Wireless is super-easy,
Oh, having to pay for cloud services is TIGHT!
You’re confusing easy with cheap.
Actually it's pronounced "Ryan George".
Right?? I don't understand this attack. People are lazy and far too trusting to have their home feeds uploaded over the internet
Cheap wireless cloud connected security cameras are the reason home surveillance is so ubiquitous today. Many people don’t have the know-how to install POE cameras, or it’d cost them too much to pay someone to do it. Plus, if you’re renting your house, putting the holes you’d need where they’re supposed to go is something you might not even be allowed to do.
I fully understand the attack. It’s effective against the majority of people.
It's one of the easier things to DIY though, much easier than setting up a printer or installing a TV. Also, it's about the same price if not cheaper, I got 1tb harddrive, 4 cameras, cables and and OS for under $200
I'm just tired of these excuses on why we give away our data and then are surprised when their security is trash
It's one of the easier things to DIY though, much easier than setting up a printer or installing a TV
I don’t think that’s true at all, and also like I said before if you rent it’s literally not an option unless you can do it without drilling holes.
Also, it's about the same price if not cheaper, I got 1tb harddrive, 4 cameras, cables and and OS for under $200
Well no, a Wyze cam is like $25. So that’s not “The same price if not cheaper”, it’s twice the cost.
The thieves are jamming WiFi systems and the comments on the article and on Lemmy seem to blame the victim for not being tech savvy. The bulk of Nest/Ring customers do so because the app is easy to use and the cameras easy to setup. By definition the victims are far less likely to be able to defend against this kind of jamming attack.
If the next step in escalation is to shut down the power to the house, will the victim be blamed for not having home batteries and solar panels?
Why not question the viability of WiFi systems in general? Has video ever been more than a deterrent to those scared of cameras? Fearless thieves who know how to deter the systems get free loot for their trouble.
Treat security like we did before 2010; improve physical security to defend instead of relying on deterrence.
Yeah, it's not really a spike in burglaries so much as a spike in a specific tool being used in burglaries. Whether they use a brick, wifi jammer or a gun they were going to rob someone someway...
Or a hoodie. I’m not sure why it’s a big g deal to WiFi jam a video doorbell when you can also defeat it with a hoodie …. Plus that’s not a burglar alarm.
Whoever is peddling anything as a burglar alarm that depends on WiFi is the real criminal
Jammer also keeps people from getting a notification that someone has come into view on the camera. An away homeowner who sees a person coming through their front door can call the police. With no notification you don't know until you get home and they're long gone.
LAPD is recommending cutting back shrubbery and coordinating with neighbors for extended leave... As a Los Angeles native, neither of these things happen. After all, high walls make for good neighbors.
He only says, ‘Good fences make good neighbors.’ Spring is the mischief in me, and I wonder If I could put a notion in his head: ‘Why do they make good neighbors? Isn’t it Where there are cows? But here there are no cows. Before I built a wall I’d ask to know What I was walling in or walling out, And to whom I was like to give offense.
I tried to get the formatting right, but oh well
I don’t know why everyone doesn’t do what I did. I have a WiFi doorbell camera but I also have 13 other cameras that cover the entire perimeter of my house connected to a PoE switch. My switch is on an UPS and connected to an outlet my natural gas generator cutover powers. My office (includes my miniPC running HAOS and frigate) is also on an UPS plugged into outlets my generator cutover powers in a locked cage inside a vented drawer with a 120mm exhaust fan to keep air circulation going in the drawer. All motion is recorded and saved to my local NAS (that is in the same locked cage) for 30 days and it syncs the recordings directory to the cloud. I have isolated cameras that look like usb chargers that record motion on a loop to 128GB micro sd cards aimed at all entry/exit points, hallways, and points is interest. Everything is pretty much set it and forget it. I get notified of any motion on my property regardless of my location and the jpeg captures are immediately sent to a dedicated email I setup should something unforeseen happens to the recorded video. If my or my partners cell phone is not on the WiFi all the cameras (except the doorbell and isolated ones) are set to siren mode on movement detection and they are surprisingly loud especially if two or three are going off at once.
I don’t know why everyone doesn’t do what I did.
Your setup is fucking insane, and I mean that in a good way. As someone who ran a small team focused on security and who entertained more than one "I totally sploited our OS/let me show you how we suck today so we can fix it" conversations with dizzyingly smart zealots, this setup has excellent layering and coverage. Well fucking done.
Cost. The same people who say "I'm on a pension so they can't steal much from me" without realizing their retirement savings and credit rating are the golden fucking goose, also won't see the benefits to such a cost in capital and setup labour. They won't do it, and they'll see us as nutcases until the leopards have eaten their face.
I was making a joke using the absurdity of what I put together as a hobby project over the past couple years as an example to reinforce the comment I replied to. I’ve spent my whole career in IT and it’s absurd the level of knowledge a lot of career or even hobbyist IT folks expect the general public to have.
My generator cost $8k installed.
I ran all the cables myself, still cost $1k for the materials.
Doorbell camera $200.
PoE cameras averages to $174 each or ~$2,500
UPS’s: $300 combined
MiniPC: $500
Cage and mounts: $150
Isolated cameras: $30 ea
SD cards: $15 ea
All told I have over $13k invested easily and it would easily be over twice as much without knowing how to do it myself. Anyone giving folks shit for using WiFi security systems is out of touch.
Fence with a lock on it is a lot cheaper. Crazy how much people will spend on surveillance, given how little it does to achieve deterrence.
I very much doubt they genuinely have all that, this is pretty obviously sarcasm.
Family members will think twice about masturbating in your house.
Nah, they'll just do it while staring directly at the camera. Gotta get that eye contact.
You just said HAOS and Frigate, and "set it and forget it" in the same statement. As a long time user of both I call shenanigans.
I also think you overestimate the ability of the average person. My mom barely knows how to work her Ring doorbell camera.
That was one of my attempts at playing my hand that I was being sarcastic. I tinker with the shit weekly and yes it is way beyond what any reasonable person should be expected to invest or understand. It’s just become a hobby of mine and I was trying to be funny, which I’m not very good at.
You've absolutely nailed the smug tone some of the comments here have, good work.
Also, imagine explaining all that to my mum, you'd be there all week.
If my or my partners cell phone is not on the WiFi all the cameras (except the doorbell and isolated ones) are set to siren mode on movement detection
Is this something you coded, or are there security camera brands that support it natively?
Can't go wrong with a german sheppard.
Until he gets bored and starts gnawing on the linoleum
That's what the burglars are for.
While still hating this living dystopia, I do appreciate some of cyberpunk headlines we get.
It doesn't hurt to hide or disguise the cameras to make them difficult to spot. That way, burglars wouldn't even try to find and break their server if they're not noticed.
Nah, cameras should be very visible so burglars see them and just go to the next house.
POE is where it's @
Yes, he kicked down the Point Of Entry. Also, Power Over Ethernet is the best. It is known.
Listen, it's a series of short horrific stories and you need to sit down to read about these absurdities that Edgar Allen Poe has to relate.
I was thinking Pillars of Eternity. PoE is always on-topic. :)
It's even easier to cut the Internet cables going into a house.
If I had a PoE surveillance system I'd have it saving to a local server.
I got great pictures of the people breaking into my van. It did nothing to help catch them.
Well, if you got a license plate, maybe the police would pretend like they care.
Never lived somewhere with buried infrastructure huh?
This but unironically. Burying lines costs money and who is going to spend it?
Uh, no it doesn't? Just use a shovel, wedge open the dirt like 6-12 inches, and Bob's your uncle. I recommend also putting in conduit so you can fish another line if you ever need to.
I would reply, but you clearly are more interested in making your own answers for yourself.
At least with my setup, I get a notification from Unifi basically immediately if my internet/power goes down. With all my POE being run through my walls and attic as well, I don't really have to worry about individual cables being cut.
At some point when I have enough money to consistently eat dinner again, I would like to get a secondary wan through a satellite internet provider specifically for when my main internet goes down.
It's easy to write snarky comments like this, but the truth is running cables isn't easy, and in some cases simply not possible, at least if you don't want the cable simply draped over the outside of the house.
Alternative is like… a single gigabyte of local storage on these things
That could just as easily be stolen
It depends how easy to reach the camera is, I can't see a thief sticking around long enough to set up a ladder to grab the camera, for example.
As a side business I consult and install security systems in small businesses and homes.
Literally none of them want the cable option, no matter how hard I push it.
The cost of running the cable and the time needed always is the dealbreaker.
Doesn't matter if its insecure, they just want it to work now and be cheap.
DHCP as in it's an ethernet connection to a residential router that provides the device with connectivity details.
Normally this isn't considered as secure as a bad actor can cut the power or connecting cables (e.g. If you're using dsl) to kick your system offline.
And, yeah, my old security system absolutely had an old 2G/EDGE modem to connect and send basic signals (as a fallback, in case of the above power cutting scenario). Was great.
I wish that apps notified you when your camera has been unreachable for too long, but at least that's a hint that a jammer may have been involved. Cameras won't stop them, but a the best setups would rely on wires and hidden local and cloud storage for recordings and alerts.
A numbers of cameras tell the user when they go offline, but yeah, a lot do not. I have a HomeKit system that sends an alert when WiFi or power has been interrupted to the camera or the primary hub.
Just picked up our 2nd bullet 4k with ai. It's a good addition to my nvr.
apps notified you when your camera has been unreachable for too long
The volume of false positives this produced would render the system significantly less useful.
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?
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. )
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:
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.
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.
Oh man, I would've hated to live in California during the Ninja epidemic.
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.
That screen capture looks like the beginning of a rap video.
yes, assuming the cables are inaccessible from outside. otherwise it would be easy to cut them.
Yes but the camera should be in a place that can't be physically tampered with easily since someone could theoretically unplug the camera and plug into your home network and see all your computers or other devices as if they had stolen your WiFi password. A small risk but it's better to hardwire it somewhere they would need a ladder to get to or get a camera system that connects to a central box inside the house.
Well, if it's not on a WiFi network, it'll be fine. CCTV is a great example of this. Just wire up some cameras, encrypt the harddrive and put it somewhere difficult to get to. Only way to disable all cameras at once would be an EMP. There are kits for a few hundred $ and all the data stays local
Or just flip off the main switch on your breaker if they can get to that.
Totally. Get a PSU? Or use solar with a PSU. Or batteries. Always a mitigation for the mitigation lol
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.
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.
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 a burglar is using a wifi-jammers then the basic consumer is not going to be able to stop said burglar. Basic consumer security products aren't designed to do anything more than keep honest people honest. It's much harder & more expensive to prevent a determined criminal from gaining entry and would likely require rethinking housing construction from the foundation up.
Its also to help police with investigations. POE cameras and doorbells won't have this specific weakness, they'll probably still get in and steal all your valuables, but if they think thier wifi jammer is working you might get some footage thats useful for the cops...
Wouldn't that destroy all the expensive electronics they're trying to steal?
My go to method for stealing people's stuff is actually a neutron bomb. It keeps the property intact and all you gotta do is wait for a few months for the big gamma emitting neutron activated materials to cool off.
I highly doubt they'll go through that much effort. If they do notice you have POE devices, they'll probably just go to your neighbor's house. And that's the whole point of this type of security, be just a bit more secure than the next person.
Easiest way to avoid this bullshit is to install wired cameras, and such a way that they are not easy to access/cut.
I know someones gonna come in and be all "BUHBUHBUT YOU CAN JUST DESTROY THE CAMERAS" and yeah, thats true.
but you cant destroy the camera from 3 blocks over, you have to get right up on them, and your face/vehicle/other helpful information may just well be caught and recorded before you do. Unlike wifi jamming, which could be done from streets away.
Wireless cameras and "smart" doorbells shouldn't even be seen as security devices to begin with. They're for verifying your Amazon delivery and checking on the dog and nothing more.
exactly. If anything they are insecurity devices considering how many 3rd parties typically have access to them without your knowledge or permission.
I am an leading expert in insecurity.
Exactly, this is only an issue for me if my cat manages to build a wifi jammer. Though that is a possibility.
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.
Own a musket for home defense, since that's what the founding fathers intended. Four ruffians break into my house. "What the devil?" As I grab my powdered wig and Kentucky rifle. I blow a golf ball sized hole through the first man, he's dead on the spot. I draw my pistol on the second man, miss him entirely because it's smoothbore and nails the neighbors dog. I have to resort to the cannon mounted at the top of the stairs loaded with grape shot, "Tally ho lads" the grape shot shreds two men in the blast, the sound and extra shrapnel set off car alarms. Fix bayonet and charge the last terrified rapscallion. He Bleeds out waiting on the police to arrive since triangular bayonet wounds are impossible to stitch up. Just as the founding fathers intended.
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.
Some systems already have that. Replaced a switch yesterday and re-arranged some things on my network board and got a HomeKit notification that some things were offline and when it came back. Knowing when something goes offline isn’t as useful as keeping things up though. With something like a hardwired camera/NVR, even if your ISP service is interrupted the cameras can still record, and you can put a UPS there to keep things going, even if the rest of the network is down.
Physical locks, physical keys. We are collectively becoming too "smart" for our own good
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.
It doesn't.
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?
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.
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.
Good point! I forget these devices are rather cheap.
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.
I'm down to two 2.4GHz devices over the whole network now.
The day I can disable it entirely will be a happy one!
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.
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 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.
That doesn't surprise me, it's a lot easier to interfere with analog video signals and 1kW is a lot of power. Some ferrite beads and better coax can make them much less susceptible to interference though.
CB amplifiers are not well known for producing clean signals, especially when the operator is trying to get as much power out as possible.
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Don't use wireless for security, PoE or CCTV
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