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Anti-Wi-Fi Wallpaper

Alephcat writes "New Scientist is reporting on a wallpaper that can prevent hackers accessing secure networks via Wi-Fi - without blocking mobile phone signals - that's been developed by a British defence contractor. It is based on covert 'stealth' technology that was originally designed to hide military radars."

52 of 233 comments (clear)

  1. Where'd The Town Go? by ackthpt · · Score: 5, Funny
    It is based on covert 'stealth' technology that was originally designed to hide military radars."

    "Heathrow Tower, we can see London, but RADAR says it doesn't exist, then this weird music starts playing and this guy gets up from his seat with a big book and says we've entered some twilight thingie!"

    --

    A feeling of having made the same mistake before: Deja Foobar
  2. That's fine... but by Anonymous Coward · · Score: 5, Interesting

    what's to stop me from establishing a VPN connection over my GPRS cell? Either way, they can't win.

    1. Re:That's fine... but by Have+Blue · · Score: 4, Insightful

      The article says the main threat this targets is outsiders. They don't care if you VPN out from inside the building- physical security is meant stop you from getting in in the first place if you're not authorized. But you won't be able to get on wireless base stations inside the building if you're outside it.

    2. Re:That's fine... but by retostamm · · Score: 2, Interesting

      If you turn it into "block" mode, it will block all frequencies, so your Cell won't work either. Of course, you could get that effect with tin foil :)

    3. Re:That's fine... but by FireFury03 · · Score: 2, Insightful

      Seems like a far more sensible (and cheap) way to deal with the insecurity of wireless networks is to use frickin' secure protocols!

      I mean, how hard is it to run IPSEC over the network?!?

    4. Re:That's fine... but by FireFury03 · · Score: 2, Interesting

      Or you could simply use wired networks.

      In situations where wired networks are a good solution I see absolutely no reason to use wireless networks - wired networks are faster, more reliable, more secure. However there are a lot of situations where wireless networks are useful - I have a wireless network so I can move my notebook anywhere in my house without having to get tangled up in long network cables. On a factory floor I can see many times where you might want to access the corporate LAN or the internet without having to plug cables in. Like it or not, there are many situations where a wired network in impractical, but IMHO if you don't understand security you have absolutely no business setting up a wireless network - go pay someone who has a clue and get them to do it.

  3. 1280x1024? by spinflip · · Score: 4, Funny

    Does it come in 1280x1024?

    1. Re:1280x1024? by DragonMagic · · Score: 4, Funny

      Real geeks have 3200x1200 desktops, using dual 21" flat panel monitors.

      --

      Human nature is the same everywhere; the modes only are different. -- Earl of Chesterfield
    2. Re:1280x1024? by JAgostoni · · Score: 2, Funny

      As much as parent's post was a joke, this is the first thing that came to mind. Did they come out with some sort of interference pattern in desktop wallpaper? I am dissapointed now....

    3. Re:1280x1024? by irenetheno · · Score: 2, Funny

      You're not alone.

    4. Re:1280x1024? by Junta · · Score: 2, Funny

      A *REAL* geek is satisfied with a VT or Wyse terminal.

      --
      XML is like violence. If it doesn't solve the problem, use more.
    5. Re:1280x1024? by Frizzle+Fry · · Score: 2, Funny

      Yeah. I thought "Anit-Wi-Fi Wallpaper" was just going to be a BMP that says "WiFi Sucks!".

      --
      I'd rather be lucky than good.
  4. Everyone get ready.... by wolfemi1 · · Score: 3, Funny

    ... For an endless barrage of "tin-foil" jokes.

  5. New Hats! by zrobotics · · Score: 5, Funny

    Well i guess tinfoil hats are about to be replaced. as an additional bonus, it is now easier to shield your entire body from "the man"!

  6. What, you want me to put wallpaper on my windows? by radiumsoup · · Score: 3, Insightful

    Or on the ceiling? (Think multi-story apartment complex) Carpet?

    Get real... the people who want security in the first place WON'T USE WIFI.

    It'll never make it to market.

  7. Why limit themselves? by pla · · Score: 2, Insightful

    a wallpaper that can prevent hackers accessing secure networks via Wi-Fi - without blocking mobile phone signals

    But... I want it to block cell phones as well.

    And lining the whole house in foil just looks way too shiney for normal use...

  8. Does it go both ways? by NanoGator · · Score: 4, Interesting

    Can they make wallpaper that enhances my wifi instead of killing it?

    --
    "Derp de derp."
    1. Re:Does it go both ways? by Anonymous Coward · · Score: 3, Funny

      No problem. See, you just need to install it upside down.

  9. Anti Military Radar... by CODiNE · · Score: 4, Funny

    Heh... I see an army of wallpapered tanks crossing the battlefield. :-)

    --
    Cwm, fjord-bank glyphs vext quiz
  10. OK, I Admit It by ReadParse · · Score: 3, Funny

    Yeah, I thought they meant software wallpaper... like a JPG covering my desktop. "How the hell would THAT work?" I wondered. Feeling silly now.

    RP

  11. Same principal as a microwave door. by Trespass · · Score: 4, Insightful

    Kind of neat, but I worry about the fragility of the wallpaper in any kind of commercial or industrial setting. It seems to me such a material would be far more useful incorporated in a vapor barrier *inside* the wall. I know it would be an expensive retrofit that way, but how else would you deal with drop ceilings and the masses of ducting and cabling therein?

    1. Re:Same principal as a microwave door. by Lumpy · · Score: 2, Interesting

      cripes a low-tech version of this is called aluminum siding and aluminum storm windows with aluminum screening. effective to kill a wifi AP sitting 6 inches from one side and any kind of gear trying to connect on the other.

      So this makes most houses improved in the late 80's wifi-proof.

      I simply extended the aluminum screening all the way up in all windows and effectively cut off all the neighbors. the only leak points I have are the front door window and the sliding glass door in back, both fixable with aluminum screening in the storm door and the screen door.

      I dont need no "stealth" technology, All I need is a good metal conductor.

      hell, GC electronics sold a conductive RF shielding paint back in the early 90's that would also do the job just as well.

      Nothing new here, just someone marketing old RF shielding as something new.

      --
      Do not look at laser with remaining good eye.
  12. Don't be too hasty... by ackthpt · · Score: 3, Insightful
    Get real... the people who want security in the first place WON'T USE WIFI.

    Uninformed people want security, too, they just don't know it until they've been violated or 0wn3d. One former CIO thought WI-FI was extremely cool until I started showing him the stuff about War-Chalking on Slashdot. Funny reaction, though, seemed I was part of some problem by revealing such things. Must be the PHB self-defense mechanism kicking in... 'didn't make mistake, peon warning of possible security holes is actualy problem, move peon to desk further away, problem solved.'

    --

    A feeling of having made the same mistake before: Deja Foobar
  13. Finally! by seaniqua · · Score: 2, Funny

    Something to replace the tinfoil in my hat!

    --
    That's right, I read at +2 and post at +1. Not even I care what I have to say.
  14. That just might be the anser for me by mpost4 · · Score: 2, Interesting

    I am selfish, if I pay for my net access, no war driver is allowed on. Right now I am just trying to be harder to get in then my neibores.

  15. Can't see my wife liking this new wallpaper by IronChefMorimoto · · Score: 2, Funny

    WIFE: "What do you mean we need it to prevent the hacker children next door from getting our credit card numbers?"

    HUSBAND: "I know, honey -- it sounds bad, but think of all the information we have flying through the house and out the walls because we don't have this anti-wifi wallpaper in every room."

    WIFE: "What information? You mean three to four hours every Friday and Saturday night of video game data? Are you scared the hacker children next door will get your serial number? Are you scared that THEY too will learn of your porn like I did last week? Christ -- they're 12!"

    HUSBAND: "Hey -- the black hats start early these days, babe. Porn? What porn?"

    WIFE: "Never mind. What's a black hat? What are you friggin' talking about? Enough -- stop bothering me with this tin foil looking wallpaper and help me pick out a nursery paint color."

    HUSBAND: "Are you sure you want paint in the nursery, babe? What if someone hacks our wifi baby monitoring camera because we don't have this wallpaper and decides to kidnap our child?"

    WIFE: "You sad little nerdy man. Shut up and pick out a paint color."

    HUSBAND: "But -- what about our credit card num---"

    WIFE: [SLAP!]

    HUSBAND: "Yes dear -- I like Nemo Yellow."

    HUSBAND: [SIGH]

    IronChefMorimoto

  16. I don't know ... by Rubbersoul · · Score: 2, Insightful

    But it is also the work of moments then for an outsider to breach that company's computer security using the Wi-Fi connection. Unless the Wi-Fi base station is protected by security measures that most amateur users would not bother to set up, it gives anyone up to 100 metres away the chance to bypass the corporate firewall and wirelessly hack straight into the network.

    Yeah, cuz most amateur users are going to install special wallpaper ...

    I understand that some compaines may want this, and it is a cool idea, but if you are going to use Wi-Fi you have better do your best to secure it, not just pray you can keep everyone out with some wall paper.

    --
    man .sig
    No manual entry for .sig.
    1. Re:I don't know ... by Sheetrock · · Score: 3, Interesting
      Think of it as part of a security solution rather than the whole solution.

      I use a firewall, but I also patch my machines. Some people skip the second step until the first or second time someone brings in a laptop from home and connects it to the internal network, which brings me to the point about running software firewalls on individual machines in addition to the one at the router.

      I agree that this wallpaper is better as a backup defense rather than a primary one, but plays an important part nonetheless. Home laptops are being pushed with WiFi now.

      --

      Try not. Do or do not, there is no try.
      -- Dr. Spock, stardate 2822-3.




  17. Mod parent down...didn't RTFA by genixia · · Score: 2, Informative

    If he had, he would have seen;

    that rogue APs are a concern (Strike 1),
    that they are working on transparent window treatments (Strike 2), and
    that they have considered market pricing (Strike 3).

  18. Cost effective??? by Atryn · · Score: 5, Insightful
    Ok, let me quote a couple spots to see if I understand this correctly...
    The technology is designed to stop outsiders gaining access to a secure network by using Wi-Fi networks casually set up by workers at the office.
    Ok, so we are talking about stopping "casually set up" convenience networks, not hackers.
    But it is also the work of moments then for an outsider to breach that company's computer security using the Wi-Fi connection.
    Ok, so it only takes moments to detect if an employee has done this.
    Until now, the only way to ensure people are not illicitly gaining access to company secrets has been to turn offices into a signal-proof "Faraday cage", by lining the walls with aluminium foil, and using glass that absorbs radio waves in the windows.
    Clearly this solution is expensive and unsightly.
    The wall covering can be mass produced at relatively low cost. A square metre will cost about £500: peanuts to big business.
    $921 / square meter?!?!?! That's what, roughly $175,000 worth of wallpaper for a 200 square meter open cubicle-filled office space.

    Wouldn't it be easier and less expensive to:
    1. Train workers not to set up Wi-Fi
    2. Have IT periodically scan for active networks
    --
    Come play Moral Decay!
  19. Helps wardrivers find the good stuff... by dpbsmith · · Score: 3, Insightful

    ...they'll beam a wifi and a cellphone signal at a building and measure the reflections. If the building is much more reflective at wifi frequencies than cellphone frequencies, they've found something really worth finding. How they get it once they've found it is another matter, of course.

  20. Re:WEP? by genixia · · Score: 2, Interesting

    WEP is _far_ from perfect. And you are ignoring one of the main risks - that of rogue (ie non-authorised) APs set up by employees that are often unsecured.

    Security is a process, not a milepost that can be passed. Risks need to be constantly re-evaluated and addressed. You can bet that UKP500/m^2 is a small price for a Gov't agency to pay to protect secrets that could cause lives to be lost should they leak. And that also goes for military contractors too.

  21. Re:I bet by AKAImBatman · · Score: 2, Informative

    You Fiend! Making people type "www.newscientist.com/news/news.jsp?id=ns99992461" when you could have just linked there! The horror, the horror! ;-)

  22. Re:What, you want me to put wallpaper on my window by silas_moeckel · · Score: 3, Informative

    How to stop people from connecting an AP. First off dissalow any remote switches particualy dumb ones. Only allow one MAC address per port. Turn the port off if you see spanning tree. Run 802.1x auth and vlan selection with a 2 factor login (secure ID etc). Only allow one login per person. Not that hard to do with modern Cisco gear, expensive but not hard.

    --
    No sir I dont like it.
  23. Re:Expensive! by bmf033069 · · Score: 2, Funny

    Glad it is Friday, as I just can get the picture out of my head of people sitting outside your house, downloading porn, and "coating your front wall".

    That is some expensive "stuff"....

  24. Re:What, you want me to put wallpaper on my window by div_2n · · Score: 2, Insightful

    Not sure if you are aware, but WiFi is used for other applications than Internet access. Companies use it in inventory control applications in stores and warehouses and all kinds of places. I think they would be very interested to know they could prevent someone from setting with a laptop snooping what's going on with their inventory.

    Hospitals and doctors offices would be especially interested to help keep their information inside their walls and further comply with regulations.

    They would likely make more money selling to organizations like that anyway than selling to individuals.

  25. Polarising Filter by Midnight+Thunder · · Score: 2, Insightful
    Reading the decription of the technology it really sounds like a polarising filter for radio frequencies:
    On one side most of the copper is removed, leaving a grid of copper crosses. On the other side, matching crosses, turned through 45 degrees, are etched away - leaving a film of copper with a grid of cross-shaped holes. BAE says that by carefully changing the size of the crosses and their spacing, the sheet can pass precisely defined frequencies, while blocking all others.
    --
    Jumpstart the tartan drive.
  26. I have a better idea... by stubear · · Score: 2, Insightful

    ...and they can save half the money they spent (not because the idea is expensive but because I'm greedy). Simply fire ANYONE on the spot who connects an unauthorized wireless hub to the corporate network. No questions asked, no ifs, ands, or buts about it. Show the employee, err...ex-employee, the door and make sure to have him escorted by no less that four security guards. Make him look foolish for his transgressions and make sure others see his shame. This idea works for opening e-mail attachments without verifying the source and giving out passwords to unauthorized people amongst other problems with security.

  27. wouldn't this really screw up in-office wifi? by dj42 · · Score: 2, Insightful

    If you're using this to keep wireless data inside (and not pervent transmission altogether), doesn't it seem like this would defeat any chance at room to room wifi access? I mean, it's hard enough to get good signal strenth in buildings without having some futuristic alien-technology inspired government stealth ultra-anti-signal wallpaper in the place.

    --
    We are one consciousness experiencing itself subjectively. Back to you with the weather, Bob!
  28. Smells like a conspiracy to me. by MarkGriz · · Score: 5, Funny

    That damn paint-and-wallpaper trade group is just trying to scare everyone so they can unload a warehouse full of surplus foil wallpaper that went out of style in the 70's

    --
    Beauty is in the eye of the beerholder.
  29. Re:Dupe? by MortisUmbra · · Score: 2, Funny

    Yeah, give it up, I don't think they care....honestly neither do I at this point....just glad I dont pay for /.

    --

    "The saddest words of mice and men, are not those which were, but should have been."
  30. you only saved me 2 clicks :-) by rokzy · · Score: 2, Insightful

    it's not so bad with Firefox - doubleclick to select link text, middle click to go to Google's best guess (which is the actual site)

  31. Anti Wi-Fi neighbor!! by ron_ivi · · Score: 3, Interesting
    I can beat that... I had a anti-wi-fi neighbor.

    Set up my wireless access point as a deliberatelly unprotected box and watched packets fly by my router... Seems one of my neighbors was quite into high-bandwidth images and videos - guess he had a script or something to make downloading faster. Pretty effective denial of service attack on the WiFi access point.

    1. Re:Anti Wi-Fi neighbor!! by Cat_Byte · · Score: 2, Interesting

      I believe it was called fatpipe and last I checked it was still around. Let me know if it works ;) I've got my signal and a neighbors...hehe.

      --
      Two roads diverged in a wood, and I - I took the one the bus load of girls just went down.
    2. Re:Anti Wi-Fi neighbor!! by homer_ca · · Score: 2, Interesting

      That's what that so called Speedbooster 108Mb/s gear does. It uses two non-overlapping WiFi channels simultaneously to double the speed. It also effectively monopolizes all the 2.4GHz channels in the area. As long as your neighbors aren't complaining...

  32. Re:What, you want me to put wallpaper on my window by retostamm · · Score: 2, Informative

    It's not really wallpaper, it's a thin sheet of Kapton (1/10th of a millimeter). You can see trough that, so you can paste it on windows, and you can also put it under the carpet and in the crawl space above you.

    But I think you are right, people who want security won't use Computers :)

  33. New Wallpaper 2.0 by Devi0s · · Score: 2, Funny

    Brought to you by the makers of the tin-foil hat and the ionic bracelet...

    --
    - Have you ever noticed that the more you learn about technology, the more stupid you sound trying to explain it?
  34. selective interference by dillee1 · · Score: 2, Interesting

    The tech behind that wall paper sounds like the same as selective interference used on camera lens anti-reflection coating.
    In this case the spacing of the 2 reflective layer is tuned to allow maxium transmission of GSM and 3G signal; the reflection wave from first copper layer is 180^ out of phase with the reflection wave from the second copper layer.
    IMO this wallpaper will block EVERYTHING and just allows the mobile channels to go through.

  35. Who needs wallpaper when you can just fight back? by vizualizr · · Score: 5, Funny

    Maybe I'm the only one who ran across http://www.evilscheme.org/defcon/ this little gem , but this seems like a very good low-budget option for striking back at your friendly neighborhood wi-fi swipers.

    --
    anything i tell you will cloud your opinion.
  36. Re: Anti-Wi-Fi Wallpaper by Richard+George · · Score: 2, Informative
    The real objective of this wallpaper (and competing paint and window film products) is to offer a low-cost method to provide TEMPEST protection to offices as an alternative to building a full skiff.

    This anti-WiFi wall paper is grossly overpriced. The same effect can be achieved using EMSEC's paint at a cost of about $3 per square foot (about $500 per gallon) or using ASTIC Signals Defense's SD1000, SD2000, or SD3000 series window films (about $15 to $30 per square feet installed; substantially more for the bullet proof glass version installed at US Embassies).

    See http://www.worldtechex.com/WorldTech/Browsing/frmC ategory.aspx?type=TECHNOLOGY&id=59&report-id=5 for more information about the ASTIC film.

    Both products block most RF frequencies, including the WiFi frequencies. The window film also blocks infrared threats(e.g. laser microphones) and UV threats (see the cambridge whitepaper on CRT threats).

    The paint essentially includes certain powdered metals, including copper, that block RF frequencies. The window film takes a blast-resistant film and uses a patented plasma sputtering process to place a thin layer of gold, silver, and other metals on the window film.

    The film is currently installed on a variety of buildings dealing with defense, homeland security, and intelligence in the Washington DC area. The EMSEC paint is State-Department controlled and requires a license for export. The ASTIC film can be exported to any country except those on the terror / bad company list.

  37. Great stuff -- Enforce no mobile phones! by billsf · · Score: 2, Interesting

    There must be (a possibly bigger) market in blocking mobile phones? Make the tuned circuits resonate at lower frequencies (larger) and block mobile phones. Its so obvious as a legal way to enforce 'quiet zones' in so many places. Modern mobile phones are at 800, 900, 1800 and 1900MHz. Larger elements and the added bonus mobile phones are close to harmonic intervals makes for a simplified design.

    There is quite a bit of information (in books, not http) how to do this. Is about as 'hi-tech' as anti-theft tags on CDs. At five or ten bucks a m^2 there would definitely be a market for a variety of purposes, and frequencies, including wlan. This beats the hell out of active jamming. Except for perhaps the US, this is definitely NOT patentable.