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Why do credit and debit cards all have holograms?

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Holograms were originally added to credit cards as security features. From Wikipedia: > In 1984, most Visa cards around the world began to feature a hologram of a dove on its face, generally under the last four digits of the Visa number. read more

In addition, holograms generally have hidden images placed within them to provide immediate authentication and validation. Security Holograms. Security holograms, originated in the early 1980s by MasterCard International, are used not only on credit cards, but on passports, expensive electronics and even banknotes. read more

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