altered, a form of ID that doesn't exist and a copy of an ID which has been made. Modern fake ID cards almost invariably carry a picture of the authorized user, a simple and effective form of biometric identification. However, forgery of basic photographic ID cards has become simple in recent years with the availability of low-cost high-resolution printers, scanners and photo-editing software. Basic fake ID cards are commonly made using an inkjet or laser printer to print a replica document which is then laminated to resemble a real ID card. Most designs are made using computer programs, re-creating scanned copies of a license. More complex ID cards are now being created by printing on a material called Teslin or Artisyn, which are paper-like materials that are actually micro-porous plastic sheets. When butterfly pouches and holograms are applied, the card is then run through a heat laminator, creating a professional-looking ID card. Numerous security printing techniques have been used to attempt to enhance the security of ID cards. For example, many modern documents include holograms, which are difficult to replicate without expensive equipment not generally available. Though accurate recreation of these holograms is extremely difficult, using a mixture of pigments and base can create a similar shiny multi-colored look that may pass cursory inspection. Another form of document security is UV-light visible ink. In addition, some documents include a magnetic strip, which contains the similar information to that printed on the card. The data may thus be checked against other data on the card, such as printed information or a machine-readable barcode. Magnetic strips may also contain other secret identifying information. Although magnetic strips can also be faked, they provide another barrier to entry for the amateur forger. Other hidden security devices can also be added, including embedded secure cryptoprocessor chips which are designed to be very difficult to forge, and RFID tags⁠ ⁠—⁠ ⁠the two technologies may also be combined, in the case of contactless smart cards. Another effective technique is the use of online verification of security information against a central database. In many cases, online verification can detect simple copying of a document by detecting attempted use in multiple places at the same time, or completely false IDs, as the information on the ID will be found to be invalid. A simple method of confirming that an ID is genuine is to print a serial number on