Ключевые слова: alarm, background, broadcasting, business, business meeting, camera, cctv, cctv camera, cement, communication, connect, connection, control, crime, danger, digital, electrical, electronic, equipment, guard, industry, information, internet, isolated, lens, look, looking, mobility, monitor, monitoring, privacy, private, protect, protection, record, safe, safety, secrecy, secure, security, security camera, spy, surveillance, system, technology, video, view, wall, watch, white,