Ключевые слова: alarm, alertness, building, camera, cctv, control, crime, danger, digital, electronic, electronics, equipment, guard, home, industry, lens, look, looking, modern, monitor, monitoring, observe, office, outdoor, privacy, private, property, protect, protection, record, safe, safety, secrecy, secure, security, spy, surveillance, system, technology, video, view, vision, wall, watch, watching, white,