Ключевые слова: abstract, access, background, business, cable, cipher, code, commercial, communication, computer, concept, confidential, connect, data, design, digital, firewall, hacker, information, internet, key, keyboard, lan, laptop, link, lock, net, network, networking, number, password, pc, plug, privacy, protect, protection, safety, secret, secure, secured, security, server, space, steganogram, switch, tech, white, working,