a macro image of the red microprint and fluorescent ink on a euro banknote, highlighting the advanced tamper-proof

money currency seal tamperproof hologram counterfeits authenticity watermark forgery cash banknote paper finance european europe note euro financial detail guilloche spirograph closeup reflection fluorescence fraud banknotes foil bill union fake fine lines certificate 100 reflective false bills strips holograms technology bank mark profit savings flat part number payment tilt security