2FA

Two-factor authentication

What is 2FA?

2FA (Two-Factor Authentication) is an authentication method that significantly increases the security of access to accounts and systems by requiring identity verification using two independent factors. Most often, it combines something the user knows (e.g., a password) with something the user has (e.g., a mobile app like Google Authenticator or an SMS code).

The term MFA (Multi-Factor Authentication) is sometimes used interchangeably with 2FA, although technically it refers to using two or more different categories of authentication factors. Both methods share the same goal: to effectively reduce the risk of unauthorized access, even if a user’s password is compromised.

Key features of 2FA

  • User identity verification – confirming login using an additional factor (e.g., a mobile app, token, SMS, email, or hardware key).

  • Protection against password theft and phishing – attackers cannot gain access without the second authentication factor.

  • Flexible login methods – support for one-time passwords (OTP), push notifications, and FIDO2 integration.

  • Centralized access policy management – administrators can define 2FA rules based on roles, location, or login risk.

  • Integration with existing IT infrastructure – 2FA works with Active Directory, VPNs, cloud systems, and business applications.

2FA is the foundation of security for every organization

Immediate security improvement — without high costs or complex implementation
2FA is one of the fastest and most cost-effective ways to significantly increase the security of access to IT systems. It protects accounts from takeover even if a password is stolen or leaked from an external service.
Minimizing the risk of human error
Since most incidents start with phishing or weak passwords, 2FA greatly reduces the attack surface at the system’s weakest point — human error. Even accidental disclosure of login credentials does not immediately lead to account compromise.
Flexibility and integration with existing infrastructure
Modern 2FA solutions can be integrated with Active Directory, VPNs, cloud platforms (M365, AWS, GCP), and business applications — without the need to rebuild the environment. They work in on-premise, hybrid, and SaaS models.
Support for regulatory compliance (NIS2, DORA, GDPR)
2FA is explicitly referenced in many regulations as a key element of access control and identity management. This helps organizations meet legal and audit requirements while building real security — not just formal compliance.
High return on investment
The cost of implementing 2FA is low compared to the potential losses after a security incident. In addition, it improves security awareness among employees and builds trust with customers and partners.
Do you need a 2FA solution? Contact us

2FA in the context of NIS2

NIS2 and the amendment to the KSC Act impose on essential and important entities the obligation to implement “appropriate and proportionate risk management measures,” including, among others:

  • information system security policies,
  • access management,
  • protection against unauthorized access,
  • supply chain security.

In the context of access management and protection, 2FA/MFA (Multi-Factor Authentication) is one of the most effective and widely recognized mechanisms.

We implement 2FA tools from leading vendors

We provide end-to-end solutions by designing, integrating, and maintaining modern security systems. Our engineers have many years of experience in deploying PAM and 2FA solutions, confirmed by relevant certifications.

Delinea
Thales
Silverfort
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Fudo Security

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