Ключевые слова: abstract, android, background, business, chain, closeup, computer, concept, connection, crime, danger, data, encryption, firewall, fraud, guard, hacker, illustration, information, internet, isolated, key, laptop, lock, malware, metaphor, network, notebook, office, padlock, password, pc, privacy, private, protection, safe, safeguard, safety, secrecy, secure, security, spam, stealing, system, technology, trojan, trust, virus, white,