Ключевые слова: abstract, access, anti virus, asymmetric, background, blue, business, circuit, code, concept, confidentiality, cryptography, defense, electricity, encryption, glossy, guard, https, icon, illustration, information, internet, key, layer, lock, network, password, protect, protected information, protection, render, restricted, risk, safety, secure, secured, security, shield, sign, strong, symbol, symmetric, tech, threat, transaction, transport, web, website, www,