.... when we understand some of the security features of the banknote.

A little banknote, a little knowledge each day

Some of the basic security methods and techniques which many banknotes adopt include:
security thread, watermark, printing patterns, latent images, hologram, micro textlines, optical variable ink, etc.

A good simple presentation is Central Bank of Malta's Security Features on Maltese Currency Notes

On 2nd March 2006 the new redesigned US$10 banknote is introduced to the public.
This site moneyfactory.gov is a fine example of disseminating useful information about the new security features of the banknote.

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