Multi-factor authentication

What is multi-factor authentication?

Multi-factor authentication (MFA) is a key cyber security procedure. It protects digital access by using at least two independent factors. This prevents attackers from accessing accounts or systems with a stolen password alone.

MFA combined as a rule:

1. Knowledge – something you know (e.g. password)
2. Possession – something you have (e.g. smartphone, authenticator app)
3. Biometrics – something you are (e.g. fingerprint, facial recognition)

Example: A user logs in with a password and must also approve a confirmation via an app on their smartphone. This double check makes it much more difficult for cyber attacks.

Why is MFA important for safety?

In today’s digital world, a simple password is no longer enough. Phishing and data leaks are common risks. Multi-factor authentication significantly reduces these risks and increases the security of IT systems, user accounts and applications.

Many companies use MFA as part of their cyber security strategy. It protects personal data, sensitive information and critical infrastructures. Legal requirements, such as the GDPR, also promote the use of such security measures.

MFA is a fundamental building block of modern cyber security and should be standard in every organization – whether for cloud access, the email system or access to internal tools.