This article analyzes open-source multi-factor authentication (MFA) solutions. Research on adapting the MFA solution is given, this research will help businesses to provide security in the implementation of remote work. This article discusses 5 open-source MFA solutions, functionality, advantages and disadvantages. For Small and Medium-sized Businesses (SMBs), using a multi-factor authentication (MFA) solution is an important element of security. MFA is an authentication method that requires several forms of authentication before a user can access a system or application. For SMBs, using MFA helps protect their business from cyberattacks, including phishing, network traffic interception and password cracking. In addition, the use of MFA helps to comply with regulations such as GDPR and HIPAA, which require companies to ensure data security.
In general, the use of MFA helps to protect important information and reduce the risks of security breaches, which can lead to financial losses, reputational problems and loss of customer confidence.
key words: MFA, 2FA, LDAP, AAA, RADIUS, authentication system authorization and event accounting, multi-factor authentication, open source solution.
