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Multi-factor authentication (MFA) is a security method that requires two or more distinct forms of identification to access an account, application or system.
Unlike 2FA (double authentication), which is limited to two factors, MFA offers flexibility by combining several layers of verification, which strengthens protection against unauthorised access.
The NIS (Network and Information Security) Directive is an EU regulation introduced in 2016 (NIS 1) and 2024 (NIS 2) to strengthen the security of networks and information systems in critical sectors (energy, health, finance, etc.).
It imposes minimum security measures on Member States and a notification obligation in the event of incidents.
OCSP (Online Certificate Status Protocol) is a protocol used in cybersecurity to check the validity of digital certificates in real time.