Ключевые слова: access, authority, authorized, building, business, card, close, closed, code, coding, control, denied, design, device, door, dwelling, electronic, enter, entrance, equipment, gate, hand, handle, home, house, identity, indoors, key, lock, magnetic, modern, office, open, outdoor, password, person, plastic, protection, reader, room, safety, secure, security, style, system, technician, technology, unlock, unlocking, white,