Ключевые слова: access, biometrics, button, cellphone, click, closeup, code, concepts, device, digital, display, entering, finger, hand, home, human, id, ideas, internet, lock, mobile, modern, number, numpad, operating, pass, passcode, password, phone, pin, pointing, portable, privacy, protection, pushing, safety, screen, secure, security, smart, smartphone, symbol, system, technology, telephone, touch, unlock, unlocking, user, visual,