Ключевые слова: abstract, access, allowed, approach, authorization, background, building, business, center, city, concept, denied, design, development, digital, distributed, double, downtown, exposure, finance, financial, finger, fingerprint, future, idea, identification, information, intelligent, lock, math, mobile, network, new york, office, online, print, protection, safety, scanner, security, skyline, skyscraper, social, society, software, sunrise, technology, verification, view, windows,