Ключевые слова: access, accessibility, alarm, apartment, background, building, business, button, card, code, concept, construction, control, device, digital, door, electronic, entrance, entry, equipment, hand, home, house, icon, identification, industry, key, keypad, line, lock, modern, network, office, open, password, people, privacy, protection, safe, safety, secure, security, service, system, technology, unlock, web, work,