an up-close shot of the microprinting on a 10 ten euro banknote, highlighting the advanced tamper-proof technology used

microprinting ten euro tamperproof fraud falsify fake guilloche money currency seal counterfeits authenticity watermark forgery cash banknote paper finance european europe note financial detail spirograph closeup reflection fluorescence banknotes foil bill union fine lines holographic element print banking technology modern economy number bills security holograms false tilt strips denomination texture