Ключевые слова: activity, audit, authentic, authentication, background, banknote, bill, bogus, bright, business, cash, cheat, check, checkup, counterfeit, counterfeiting, currency, denomination, fake, false, finance, flam, forgery, fraud, genuine, hand, hoax, keep, light, money, monies, real, review, revision, scam, scan, sham, skylight, success, sun, swindle, trickery, true, validation, veritable, vigilance, watch, watermark, wherewithal, window,