What are Security Holograms, and Why Are They Secure?
Security holograms are used to prevent counterfeiting, or to otherwise authenticate the products to which they are affixed. Holograms are noteworthy in this regard, since they are both costly to produce and extremely difficult to duplicate. Further, the addition of covert security devices, sequential numbering, tamper evident adhesives and other security features make a well-produced security hologram virtually impossible to duplicate without by anyone other than its creator. The most commonly recognized form of security holograms can be found on Master Card and Visa credit cards.
