2FA authentification

2FA authentification – Two-Factor Authentication

Strong authentication is a form of enhanced security that helps improve security in information systems and simplifies user access by eliminating the need for passwords and logins. This concept can be achieved through two simple principles : 2FA or two-factor authentication and MFA or multi-factor authentication.

2FA is a crucial tool for enhancing the security of online accounts. It provides additional protection against hacking attempts, even if passwords are compromised. Even if an attacker manages to obtain a user’s password, it will be difficult, if not impossible, to access the account without the second authentication factor.

These factors can take several forms :

• SMS or Voice Call : A verification code is sent to the associated phone number.
• Authentication Apps : Applications can generate temporary codes synchronized with the account.
• Physical Security Keys : Special USB devices or security tokens that generate unique codes for a secure connection.
• Biometrics : Facial recognition, fingerprint scanning, or retinal scans.

Most of the time, 2FA combines two of these factors to verify the user’s identity. For instance, after entering a password while logging into an online account, the user might receive a unique code on their mobile phone to confirm their identity before accessing the account. The principle of 2FA is to secure access in case of loss, hacking, or password theft. An attacker who manages to obtain a user’s password will also need the second authentication to access the account.

Two-Factor Authentication has become a critical element of online security. It provides users with additional protection, thereby reducing the risks of hacking and data theft. With the constant evolution of online threats, the integration of 2FA is becoming increasingly necessary to ensure the security of accounts and personal information in today’s digital world.

To learn more about strong authentication : https://www.cnil.fr/fr/securite-utilisez-lauthentification-multifacteur-pour-vos-comptes-en-ligne.