Ключевые слова: access, account, approved, authentic, authentication, authorization, black, certificate, cloud, computer, data, factor, firewall, genuine, icons, id, identification, identity, internet, isolated, key, laptop, lock, login, mobile, multi, multifactor, online, password, permission, phone, privacy, safe, safety, screen, security, set, simple, smartphone, sms, step, technology, two, user, validation, verification, verify, web,