Ключевые слова: abstract, art, authorization, background, button, closed, code, color, concept, cyber, decoration, design, element, flat, graphic, guard, hack, hacker, icon, illustration, interface, internet, isolated, key, keyhole, lock, lockout, net, network, one, pad, padlock, password, pictogram, privacy, protection, safe, safety, secure, security, shape, shiny, sign, silhouette, simple, symbol, system, unlock, web,