Two-Factor Authentication (2FA)
Definition
Two-Factor Authentication (2FA) is a security mechanism that requires users to verify their identity through two separate methods — typically a password plus a one-time code sent to their phone — before gaining access to a system.
Full Explanation
Two-Factor Authentication (2FA) adds a second verification layer beyond a password when a user attempts to log into a system. The most common implementation sends a one-time numeric code (OTP) via SMS to the user's registered phone number; the user must enter both their password and this code to complete login. Because the OTP is delivered to a physical device (the user's phone), an attacker who steals or guesses the password still cannot access the account without also possessing that phone. Other forms of 2FA include authenticator apps (Google Authenticator, Microsoft Authenticator), hardware security keys, and email verification codes. For school management systems, enabling 2FA for administrator-level accounts — headteachers, bursars, ICT coordinators — is the single most impactful security measure available, dramatically reducing the risk of account takeover even if staff fall victim to phishing attacks. In the African context, SMS-based 2FA is the most practical implementation because smartphone penetration is high enough that all admin staff typically have mobile phones. RedeemOS supports 2FA for all user roles.
Related Terms
Related RedeemOS Features
See Two-Factor Authentication (2FA) in RedeemOS
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