Uwierzytelnianie wieloskładnikowe

Zasady pracy, bezpieczne hasła i ochrona danych osobowych - Informatyka - technikum klasa 1 (draw)

**Uwierzytelnianie** to sprawdzenie, czy to naprawdę ty. Składniki są trzech rodzajów: - coś, co **wiesz** (hasło, PIN), - coś, co **masz** (telefon z aplikacją, klucz sprzętowy U2F), - coś, czym **jesteś** (odcisk palca, twarz). Logowanie **dwuskładnikowe** (2FA) łączy dwa różne rodzaje. Złodziej, który zna hasło z wycieku, nie ma twojego telefonu, więc nie wejdzie. Kod z aplikacji jest bezpieczniejszy niż SMS (SMS da się przechwycić przez podmianę karty SIM), a najbezpieczniejszy jest klucz sprzętowy: działa tylko na prawdziwej stronie, więc chroni też przed fałszywymi stronami logowania. Schemat pokazuje logowanie z drugim składnikiem.

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