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Counterfeiting With High Resolution Inkjets

Makarand writes "Thanks to the availability of low cost high quality inkjet printers, crooks are now able to produce currency indistinguishable from the real banknotes, at least under dim lighting conditions like that in a bar or a nightclub. The term "digifeiters" is being coined for counterfeiters that use cheap high-resolution printers to produce fake currency. Unlike costly color xerographic copiers that come inbuilt with features to detect security details on banknotes and stop currency copying, no cheap printers come with such feature. An anti-digifeiting system for cheaper printers may consist of printer driver software capable of recognizing data patterns indicating currencies of several countries." I wonder what GimpPrint would think of being forced to print or not print certain documents based on their contents.

42 of 682 comments (clear)

  1. Plastic Notes work well by vk2tds · · Score: 5, Interesting

    Go for plastic bank notes like australia. They work well... They even have clear patches you can see right through.

    1. Re:Plastic Notes work well by bogado · · Score: 3, Interesting

      The money paper is easily available in lower value currency, the counterfitter can washout the paint and reprint the paper with a higher value (wash out a $1,00 bill print a $10,00). The Euro money uses diferent sizes for different values to make this impossible.

      Brasilian money also has a plastic money, currently there is two version of the R$10,00 bill in circulation, one of the is plastic.

      --
      []'s Victor Bogado da Silva Lins

      ^[:wq

    2. Re:Plastic Notes work well by jeffy124 · · Score: 3, Interesting

      how many checkout chicks carefully look over every note?

      Well, I'm not a chick, but was once a checkout boy during HS. We were given a detector pen to use on 20s or higher that turns brown on real money, black on most everything else. When the new bills came out in the late 90s, we were specifically instructed to check for that color-shifting ink in addition to that pen. It's also very easy to tell that a bill is suspect based on feel alone (one of the main focuses of my original post), as the US paper currency has a distinctive feel against other forms of paper.

      But that only stops people who try to print their own at home, it doesnt stop those who bleach the ink off a $5 and print on a $100. Yeah - that's one of the problems with US money being all green. They have watermarks now (which are added at the mill where the paper is made, and cant be removed), but those are hard to check for at a checkout counter. I personally think that the paper should have some kind of varying color (like that new 20 that's coming soon) that differs between denominations.

      How does the plastic money handle? What exactly is in that window - some sort of hologram or other image? I take it each denomination has its own color and size, but I think differing size would make it hard to carry around in your wallet.

      --
      The One Rule Of Chess You'll Ever Need: Don't play someone who carries a kit in their bookbag.
    3. Re:Plastic Notes work well by spoco2 · · Score: 5, Interesting

      The AC stated the sizes of the notes only differ in length, there's no issue with having them in the wallet, they're easy to have in there... and so much easier to choose the notes you want without having to take them all out and rifle through them to find the 20 instead of the 1 (We have no 1 dollar notes, we have $1 and $2 coins, much better to use).

      As for the clear window, they just have some differing white symbols on them... all the notes also have all the other useful security measures:
      Micro printing
      Water marks
      Some patterns printed on each side, that when you hold to the light they should match up to each other... which helps ensure that they were printed accurately

      The first plastic note we had (The old $5) had a hologram on it, but that came off too easily, so was scrapped.

    4. Re:Plastic Notes work well by ChadN · · Score: 3, Interesting

      Those fucking pens are the *STUPIDEST* things I've ever heard of. Besides having the effect of destroying the currency (after several pen strokes, the bills need to be destroyed and new ones circulated), they don't do anything other than check for the presence of bleach in the paper. Anyone serious about counterfeiting can easily used bleached paper (or coat it in bleach).

      The sad thing is that the new bills are equipped with much better counterfeit prevention/detection methods than afforded by the stupid pen, and by training cash register personnel with the pen, we are discouraging them from using the newer features.

      --
      "It's overkill, of course. But you can never have too much overkill." - Anonymous Slashdot Coward
    5. Re:Plastic Notes work well by MillionthMonkey · · Score: 5, Interesting

      We were given a detector pen to use on 20s or higher that turns brown on real money, black on most everything else. When the new bills came out in the late 90s, we were specifically instructed to check for that color-shifting ink in addition to that pen.

      If I'm not mistaken that "pen" is a felt tip marker with an iodine solution. The paper used for real money is known to contain no starch, so when you smear the pen across real money all you see is a faint brown smear from the iodine itself.

      Counterfeit money, on the other hand, is presumed to contain lots of starch. Starch and iodine undergo a special chemical reaction that's one of those little quirks of nature. The I2 molecules have *just* the right diameter to fit inside the helix of a starch polymer perfectly. They immediately slide in there and the resulting starch-iodine complex has a strong inky black color so powerful that it's easy to see even if trace amounts of starch are present.

      Of course, this presumes that counterfeiters are stupid, cheap, pay no attention to detail, and buy low-quality paper containing starch. As a general rule, counterfeiting is a crime that attracts very anal-retentive people. I would imagine that a counterfeiter would pay more attention to his choice of paper than a laid-off dot-com worker printing resumes. It probably isn't too hard to find paper that doesn't contain any starch, and testing for it is a piece of cake because those stupid pens are sold all over the place. I bet every counterfeiter on the planet has one.

      Still, the pen is common because people want to believe they can buy a magicical item that detects counterfeit money. If you're a counterfeiter and you can't fool an iodine pen, you should consider going into another line of crime.

    6. Re:Plastic Notes work well by Anonymous Coward · · Score: 2, Interesting

      Yeah, but you can't use it for counterfeiting because that damned paper costs more than any US currency denominations you could print on it. I agree though; great for resumes.

    7. Re:Plastic Notes work well by MillionthMonkey · · Score: 4, Interesting

      Pennies are hard to get rid of, both personally and nationally. Every so often the idea of eliminating pennies comes up and all these people come out of the woodwork to defend the penny. You would think they were taking "under God" out of the Pledge of Allegiance, they get so worked up. There is even a lobbying group devoted to keeping the penny- Americans for Common Cents. Not surprisingly, it is backed by zinc companies.

      They aren't easy to get rid of. Vending machines won't take them. In fact there's hardly any coin-operated device that accepts pennies. Spending them is awkward. You can discreetly leave piles of them on a restaurant table as a tip, but that's probably not a good idea if you ever plan on eating there again. A penny in reality is worth a little less than its face value, because of the inconvenience they present in large numbers.

      I found a good way to get rid of them. Use them to buy gasoline! You have to count them beforehand. If you have 163 pennies, just pump $11.63 or $16.63 of gas into the car, then go in, put a ten and maybe a five down, and then take all those little pennies out of your pocket and slam them down onto the counter. What's the guy going to say? They're legal tender. And they're just asking for it when they advertise prices that end in 9/10 of a cent. Usually the dude just eyeballs the pile, takes your word for it, and scoops them into the register.

    8. Re:Plastic Notes work well by The_Spud · · Score: 2, Interesting

      In the UK notes have bars which are florescent under UV light. You don't need to take time looking at all the secutity features you just wave it under the note checker to look for the glowing bars which takes seconds.

    9. Re:Plastic Notes work well by mgv · · Score: 2, Interesting

      Well, if you can afford the equipment necessary to counterfeit Australian notes well, you can probably hire an artist to recreate the note for you.. which is basically how the REAL counterfeits work. Though yeah, a lot of small scale counterfeiters will print out a few twenties then go have a night on the town. That's basically who these anti-counterfeit measures are designed to stop. The big guys will always be able to fake anything. All it takes is money, and christ, they're printing the stuff anyway, so who cares?


      Actually, we have never moved to the next phase in anticounterfitting in Australia (Mainly because the current system has virtually eliminated fraud - the stuff that gets done is mostly clearly different from the real thing and very ameturish).

      The next stage is self validating notes which incorporate specific filters in the clear parts of the note - so you look through the clear part of the note to see a mark on the opaque bit that you cant see without it. While this has not had to be done as yet, the Australian technology has this built in as an option.

      The technology has been licenced to 19 other countries, mainly because its the best one available. (Does my patriotic pride show just a little?)

      Michael

      --
      There is no cryptographic solution to the problem where the intended receiver and the attacker are the same entity.
    10. Re:Plastic Notes work well by Chess+Cardigan · · Score: 2, Interesting

      Actually, the way it works in Australia, the prices are still given to cents, but they're rounded to the nearest five cents when you pay. i.e if you buy some milk for 2.49 and a can of baked beans for 98 cents, 3.57 is rounded to 3.55.

      Yes, if you have too much time you can scam. There was once a story of an unemployed guy who would "buy" one bean at a time, which came to 2 cents which meant he didn't have to pay anything.

    11. Re:Plastic Notes work well by liquidsin · · Score: 2, Interesting

      You can get 500 sheets for just over $100 which puts it at about $0.20 per sheet. You should be able to get at least 4 bills out of one 8.5" x 11" sheet (I can't find a ruler right now to measure a bill...) so even if you print singles (lower risk of getting caught) you could make $2000 off of an investment of $100 in paper plus your ink cartridges. That's all assuming that the 24 lb. paper is the right feel for bills.

      --
      do not read this line twice.
    12. Re:Plastic Notes work well by NickFitz · · Score: 3, Interesting
      Obviously it won't have the red and blue fibers

      In his memoirs, the compulsorily-retired British counterfeiter Charles Black gives a neat method of imitating this.

      He took a load of electric wire insulation (red and blue separately IIRC), cut it into several centimeter lengths, and scattered those on a sheet of white paper in about the right density. He then photographed the resulting random arrangement, and photographically reduced it so it looked just like the pattern characteristic of US Treaury bills. Make offset litho plates, and he could run his paper (which he sourced from Australia as having the right feel, composition, etc.) through his press.

      Bingo! blank notes, virtually indistinguishable from the real thing, ready to have the rest of the design printed.

      At his trial in 1979, a US Treaury official testified that his notes were so good that they rendeerd obsolete a new note-checking machine that had taken millions of dollars of development.

      FWIW, out of millions of dollars he produced before his first prison sentence, only $8,200 was recovered worldwide. The second time, he was caught before more than a few thousand dollars had hit the streets.

      And he never got rich, because wholesale prices for counterfeit cash are so low.

      --
      Using HTML in email is like putting sound effects on your phone calls. Just say <strong>no</strong>.
  2. Where can you get that type of paper? by TD_3G · · Score: 3, Interesting

    I'm not sure about you... but I'd certainly notice if the texture or "feel" of a dollar was off. Aren't they printed on an almost clothlike paper or something? I notice the difference between that and normal printing paper easily. So where are these people getting that style of paper, and does it change the quaility or ability to print... or are bar tenders and the such just stupid and don't realize?

    --
    ...
    1. Re:Where can you get that type of paper? by GC · · Score: 4, Interesting

      which is why, here in the UK, we make higher denomination notes larger in size than those of a lesser denomination... I guess they didn't think of that in the USA.

      Apparently 90% of US currency is outside of the US at any given time.

  3. Something to consider by Sheetrock · · Score: 5, Interesting
    One of the 'anticounterfeiting' features placed in color copiers that was only acknowledged recently was a code unique to the copier that was added to each copy in such a way that it didn't noticably affect the print quality but would allow copies to be traced back to their point of origin.

    I mention this because this could be the next step for inkjets (if it hasn't been done already!) with all the privacy concerns that entails.

    --

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




  4. Re:No problem by Lord_Slepnir · · Score: 5, Interesting
    Just be on the lookout for crisp bills.

    Actually, it's a common practice for a counterfreiting operation to 'launder' its money before putting it out into circulation. They will literally put it in a washer / dryer to give it that 'worn down' look and feel.

  5. $200 George W Bush Bill by AtariAmarok · · Score: 5, Interesting

    Last year, someone went into a convenience store in rural Michigan, and bought a candy bar. They paid for it with a $200 bill with George W Bush's face on it. The clerk gave the customer about $199.30 in change without a problem.

    I think it was the manager who first raised the question about the validity of this bill later.

    --
    Don't blame Durga. I voted for Centauri.
    1. Re:$200 George W Bush Bill by Anonymous Coward · · Score: 2, Interesting

      Here's more info on JSG Boggs and a website about him.

  6. Why use such easy-to-copy notes? by quoll · · Score: 2, Interesting

    Is this the incentive for the US to change it's currency? Most countries change their notes eventually anyway, so maybe America should consider doing it sooner rather than later.

    The UK has that fancy bit of shiny foil woven into the paper that is easy to spot, and Australia uses polymer notes with transparent windows in them (these last longer than paper too). There are lots of alternatives available that a simple printer could not copy.

    OTOH, as Bruce Schneier pointed out in Secrets and Lies, sometimes the cost of addressing the problem is more than the cost that the problem causes you. :-)

  7. I don't think so ... by Rosco+P.+Coltrane · · Score: 2, Interesting

    "An anti-digifeiting system for cheaper printers may consist of printer driver software capable of recognizing data patterns indicating currencies of several countries." I wonder what GimpPrint would think of being forced to print or not print certain documents based on their contents.

    I don't think it'd make any difference for printing software. The only software that would be likely to sport anti-counterfeiting is the firmware in the printer itself.

    Anyhow, good luck to make a piece of software that detects fake banknotes, and even if it did detect fake dollars with 100% accuracy (fat chance), I'll just print fake Irakian dinars and off I'll be to the currency exchange counter. No wait ...

    --
    "A door is what a dog is perpetually on the wrong side of" - Ogden Nash
  8. That may already be happening by phr2 · · Score: 5, Interesting
    There were some rumors a while back that HP printer drivers inserted the printer serial number or some other identifier (like a Windows GUID) into color prints in a way that could be read back later by scanning with the right software, but wasn't visible just from looking at the print. Experiments and queries to HP were inconclusive. It doesn't seem to affect black and white printers.

    Sort of related: HP now offers invisible ink for inkjet printers viewable only under UV or IR light, intended to print stuff like tracking barcode on financial documents without customers noticing them (so shred all your junk mail, not just stuff with visible account numbers, since you don't know what might be printed invisibly on it). Maybe that's another way they can surreptitiously tag the output of color printers. Your printer specs say the inkjet print head has 48 dots? Have you ever actually counted them? Maybe they'll add an unannounced 49th dot that squirts invisible ink on the paper, and a tiny amount of invisible ink in a secret chamber of every cartridge. Yeah! That's the real reason the govt wants to extend the DMCA ban third-party inkjet refills, so they can keep tracing printer output back to its source! Tinfoil hat time... :)

  9. Re:But in the US... by TMLink · · Score: 3, Interesting
    From the a report about the new $20 bill:
    Dennis Forgue, a rare currency dealer and anti-counterfeiting expert, said in an earlier interview with CNN/Money that many international counterfeiters bleach the surface of small American bills and digitally print the face of a larger bill over them, even though the watermark and security strip remain the same.

    "Unless there's some sort of penetrating ink, the new bills won't fix that problem," he said.
    --
    Every time a guy gets a threesome, somewhere in heaven an angel gets his wings. --Cary Tennis
  10. UV light is the bane of home printers by AsmordeanX · · Score: 3, Interesting

    My store went from no counterfeits to getting 4 fake $20 in as many weeks. Then I got a UV lamp that beeps if something reacts too much under the light. It can be defeated, but that requires more effort than clicking print and lining up both sides of the page.

    Since we started using that, we have stopped almost $150 in counterfeits. Not bad for a $40 lamp. In the two years that it has been in place, the bank has not found anymore counterfeits in our deposits.

    One would think that a nice dim area where these bills are easier to pass, that a UV lamp would be even more useful since you could see things like the UV emblem that is on canadian money or the red fibers.

  11. Re:How would they detect features? by phillymjs · · Score: 5, Interesting

    Do they actually recognize that currency is being copied and prohibit the operation, or add watermark stuff like "void".

    They copy the bills, but some do stuff to make the copied bills unusable, like make a perfect copy of a bill but make the entire page hot pink. The Ricoh printers we had at my last job did that. Other copiers make the copy, but insert a code number somewhere on the bill unbeknownst to the counterfeiter. When the bill makes its way to the Secret Service, they find the code, contact the company, and find out where that copier is located, which speeds up the investigation quite a bit. IIRC, a few years back they nailed some idiot Cornell students this way. Unfortunately I can't find the story on Google, and I don't quite remember where I heard it-- possibly from one of the Discovery Channel or History Channel documentaries concerning the U.S. Mint or the Secret Service or counterfeiting.

    ~Philly

  12. Not only counterfeit money... by Anonymous Coward · · Score: 1, Interesting

    Posted anonymously to not karma whore, and, well, for obvious reasons.

    For about five years now I have been in the counterfeitting game. Using nothing more than an Epson printer, teslin (a special paper that does not tear, and bonds to laminate very well), and laminates with holograms (easily made using a hacked gold interference cart), I can produce fake identification cards that will pass every test up to destructive (not including having them run against the DMV database).

    After a while, creating fake IDs was child's play...nothing new here, time for me to move along. I learned how to create fake checks with nothing more than a laser printer, specialized check stock, and specialized MICR toner. When combined with the fake IDs, it took only a few minutes of work to illicitely gain hundreds of dollars.

    Unforunantly, this method has become more widespread, so it was time to move on. Now, using an offset printing press, a magnetic encoder, and an embosser, I can create fake credit cards in a matter of a half hour or so. Go to the store, swipe for a few laptops, and sell.

    This said, I have NEVER counterfeitted money because all of these methods are just so much easier. Why bother having the Secret Service breathing down your back for that, when you can just utilize the same techniques to make large amounts of cash?

    Point being: most people who utilize fraud for a living do NOT make fake currency, and those who do have much better equipment than described. I'd worry about stopping identity theft, which is all too easy to perform.

  13. Small time counterfiting profitable? by zakezuke · · Score: 2, Interesting

    I think a wide spread issue of this ability to reproduce bills would be a problem if they were good enough to fool change machines.

    I know the local gas station accepts bills in their outdoor machines, let alone do it your self carwashes that provide coins for change to use in the machines, though some are switching to tokens rather then quarters. I've never tried something I knew was counterfit, but i'd imagine that, given that these vending machines use scanners to identify a bill, i'd think they'd be easier to fool.

    Further more, small time counterfitting is less likely to raise an eyebrow. A $20, $50, $100 will be looked at most carefuly... where a $5, or a $10 isn't going to be considered as much of a threat.

    While I wouldn't want to buy, let's say a car, with quarters, they are indeed legal tender, and no human is going to argue about a quarter being counterfit, and quarters don't have any serial numbers to boot.

    This is what i'd be concerned about, a flood of sub $20 counterfit currency.

    --
    There is no sanctuary. There is no sanctuary. SHUT UP! There is no shut up. There is no shut up.
    1. Re:Small time counterfiting profitable? by ONU+CS+Geek · · Score: 2, Interesting

      Yes, but something that isn't said is that when things like this happen at carwashes/laundromats, the first place that the police go to look are at the banks. The banks sometimes are the first people to know, and the tellers have a good memory about people coming in and dumping large amounts of change for them to cash over.

      This actually happened to me once--I went to visit the significant other at work, and brought in my 'tub of change' to cash in. Well, there had been a lot of vandalism at a local car wash, and the next day I had a call from the local police department questioning the change. The police department was small enough that they knew that we were together, however, they have to question everyone as procedure.

      My next goal: A coinstar machine, only without them coming to pick the change up...me keeping it. Any ideas? I'd like to have one in my place.

      --

      I disable sigs...do you?
  14. Got a fake $20 from an ATM once by ishmalius · · Score: 2, Interesting
    A few months ago I got a bogus $20 from an automatic teller machine. It was one-sided, and made on regular paper. It looked like it had been moistened and pressed to give it a more realistic texture. However, it was so obviously fake that I find it hard to believe that it passed visual inspection twice:

    1. From the bank employee who received it
    2. From another employee who stocked the ATM

    How is this possible? Anyway, I called the bank; they said they would take it back and do the paperwork. But they would -not- reimburse me the $20! Cheap bastards! (kidding) ;-)

  15. Re:How would they detect features? by letxa2000 · · Score: 2, Interesting
    IIRC, a few years back they nailed some idiot Cornell students this way. Unfortunately I can't find the story on Google

    Which raises the question: If something happens and it isn't on Google, did it really happen? :)

  16. That may already be happening-doubtful. by Anonymous Coward · · Score: 1, Interesting

    "Your printer specs say the inkjet print head has 48 dots? Have you ever actually counted them? Maybe they'll add an unannounced 49th dot that squirts invisible ink on the paper, and a tiny amount of invisible ink in a secret chamber of every cartridge. Yeah! That's the real reason the govt wants to extend the DMCA ban third-party inkjet refills, so they can keep tracing printer output back to its source! Tinfoil hat time... :)"

    As someone who's worked on peinters there's no secret chamber, or 49th dot. The firmware I doubt however, not because it isn't possible, but because it isn't economical on consumer equipment.

  17. What ever happened to the good ole days? by PoiznDrt · · Score: 2, Interesting

    WHatever happened to the good ole days and the fun and exciting world of off-set Litho or even a silkscreen?
    Sure not everyone has the facilities, but you can carry off a more "heist" for less than the cost of the average high quality printer...
    Not to mention the extra snazzy-ness of custom ink, knowledge of paper with cloth content, and OIL based perm. inks which won't run through your fingers while trying to pass the stuff off...
    Printmaking..It's an art!

  18. Never mind, Syria has it cornered by Markus+Registrada · · Score: 3, Interesting
    It doesn't much matter what you can do with an inkjet printer. You won't get anywhere close to what is being done professionally, in mass production. Syria has been printing an estimated $20 billion/year, year after year, for a decade. How much is that? You can fit $2M in a briefcase. That's 10,000 briefcases full of bundles of cash, each year. They have to launder 30 briefcases full every day.

    The fakes are indistinguishable from the real thing, even by experts. (No surprise, they're made by experts.) Maybe Syria has a harder time, now, disposing of them, with its smuggling routes through Iraq interfered with. (Closed? You must be kidding.) Who knows how much is being printed in Russia? Dollars are very popular there.

    It didn't take long at all to start copying the new bills, which is why the U.S. is going to another design already. You probably have some Syrian bills in your pocket right now. Take a look and see if you can spot them.

    Meanwhile the Treasury is harrassing an artist, J.S.Boggs, for drawing funny money by hand and exchanging it for face value. Your tax "dollars" at work.

  19. Re:No problem by PurpleFloyd · · Score: 3, Interesting
    Color lasers run $2K-4K US for a fairly basic model. They can give you a very high-quality print (lasers are still better than inkjets), which just happens to be waterproof. Although the initial bite is quite steep, I would imagine being able to print your own money would defray the costs somewhat.

    Although it wouldn't pass a rigorous inspection, spending the printed money at a grocery store or similar location would probably be really easy (nobody would check it for the special security features, and previous posters have mentioned brands of paper that have that "money feel" to them).

    --

    That's it. I'm no longer part of Team Sanity.
  20. Easier even still by sparkie · · Score: 2, Interesting

    If 100 dollar bills are physically larger than 50's, and 50's larger than 20's and 20's larger than 10's and 10's larger than 5's and 1's smallest, it'll be kinda tough to bleach the bill and print a larger bill on it. Come on China has been doing it for years. But the US wouldn't wanna be like china would they?

  21. Tales From a Bank Cash Vault by LaCosaNostradamus · · Score: 5, Interesting

    For several months, I worked in a bank cash vault (Fifth Third Bank, Toledo OH USA) and noted some things.

    Firstly, silver coinage is very much out there, even to the point that a handful of silver Kennedy half dollars can be found in a single deposit from a department store (there was even a Franklin half in one batch). Perhaps people just don't notice silver coinage even in high-volume retail ... but then again, in handling coin, I soon learned to listen to the distinctive sound of silver tinging against the cupro-nickel normal coinage in the sealed bags. (There was one false alarm that turned out to be Eisenhower dollars.)

    Secondly, fake twenty dollar (US$20) bills are being easily passed along in bars ... I can only conclude that this is because that these are generally places where the lighting is more dim, lots of small transactions take place, and frankly, where the environment is busy and loud. Counterfeit 20s (and some 10s) showed time and time again in their deposits. (It was particularly amusing to contact the customer about the debit, since it seems some of them expect the bank to simply replace the bill with a real one.)

    It could also be that the criminal element that does the counterfeiting is native to the bar-going crowd.

    I have inspected these fake 20s in some detail. I noted right off the bat the "obvious" difference: the overall hue of the bill is off just enough to be suspicious. It is a little darker, and either slightly more yellow, brown and even a tiny bit purple. So it is easy for me to believe that these bills can be passed off in a darker environment.

    The texture of the bills was OK, surprisingly. It could be that the paper was run through a washing and/or brushing mechanism to more simulate the cloth-y feel of a real bill. As for the microprinting ... of course, it was a washed out line and that more than anything told me it was counterfeit.

    P.S. A final note about hue ... bills go through a lot, and you can't just go by the hue. I've seen bills that have been dyed ... light green, dark purple, things like that. It happens.

    --
    [You have a stable society when some nut guns down a schoolyard and the law doesn't change.]
  22. Get the money paper from the source by FearUncertaintyDoubt · · Score: 4, Interesting
    The paper is manufactured by Crane & Co. of Dalton, Massachusetts (I grew up in the neighboring town of Pittsfield, and it was a source of local pride that the money paper was made in our area). Though it does not appear that you can buy, say, blank sheets of $20 bill paper via their web site. Seems like that would be a moneymaker to me. As long as they got paid in real bills, of course.

    I think that would make a great plot for a caper movie -- pulling off a big heist of real currency paper from Crane & Co.

  23. Re:Currency Rarely Checked by gerardrj · · Score: 2, Interesting

    You hit the nail on the head.
    The U.S. Treasury has never ended the lifespan of any of the bill styles it's printed. If the U.S. Treasury authorized a note's printing, then it is legal tender no matter how old it is or what its denomination.
    If you wanted, you could counterfeit $2 bills. They rarely get back to the banks. people tend to horde them. But they are legal tender even though they where retired from new printing runs years ago.

    Unless and until the Treasury recalls and eliminates all the "old" bills, the new bill formats will do nothing to stop counterfeiters. Copiers will simply choose to copy the older and less secure bills.

    --
    Article X: The powers not delegated... by the Constitution...are reserved...to the people
  24. True Canadian Story by B5_geek · · Score: 2, Interesting

    My cousin is currently in jail for this crime.
    He was spend over $10,000 per month on ink cartridges. The `special` paper was very easy to get ahold of, so don't let that fool you. This was not a `small-time` operation either. There were 4+ print-houses setup in 2 cities. Each warehouse had more then 40 printers.
    He made $10, $20, and $100 notes. Canadian currency has a little psudo-holographic square in the corner. He just used a simple little green/gold foil glued onto the paper to overcome this level of protection. The cops finally caught him after he owned the following: 2 Ford Mustangs 1 20' boat 4 Jet-ski's 1 Lincoln Navigator SUV 4 Houses (and he bought them all with cash)
    To say he made millions would be an understatement.

    --
    "The price good men pay for indifference to public affairs is to be ruled by evil men." ~Plato (427-347 BC)
  25. Re:Correction on the story by Anonymous Coward · · Score: 1, Interesting

    $3 bills?

    Heck, try spending some nice crisp $2 bills (REAL!). People look at you like you've grown a new head.

  26. Magicians and Money by Aidtopia · · Score: 2, Interesting

    Magicians that do tricks with money work right on the edge of legality. Defacing currency is illegal if you attempt to pass it off.

    If you get a batch of new notes, it's likely that the serial numbers will be consecutive. On US currency, the green ink used for the serial numbers can be erased quite cleanly with a regular pencil eraser. So you take two consecutively numbered bills and erase the last digit of each. Now it appears you have two bills with the same serial number. Spectators generally don't know how many digits are in a serial number and thus won't notice that it's short. You can burn a bill right in front of their eyes then produce the substitute for a startling illusion.

    There are lots of gaffed coins out there, too. Craftsmen start with real coins and modify them, so they're not counterfitting. Inexpensive ones look good. Expensive ones are uncanny. The trick is not to spend them accidentally. :-)

  27. Steganography by Jetson · · Score: 2, Interesting
    There were some rumors a while back that HP printer drivers inserted the printer serial number or some other identifier (like a Windows GUID) into color prints in a way that could be read back later by scanning with the right software, but wasn't visible just from looking at the print.

    You can do that sort of thing yourself, too. The simplest form of steganography is to diddle the LSB of one of the colours. Since the human eye doesn't focus well in the blue wavelengths, you would filter the host image to create a 23-bit RGB (887) image and OR it with your one-bit RGB (001) data image. Extracting the data is a matter of scanning the original (if not already in electronic form) and filtering out everything but the blue LSB. The real challenge is determining the best patterns to use to encode your data so that it can be recovered if the image is damaged enroute (as would quickly happen with currency). Like a barcode image, you would want the embedded data to have a large surface area, delimiters, CRCs and have redundant copies distributed throughout the host image.