Multi-factor authentication (MFA) is essential to protect against password attacks, but it is vulnerable to various MFA attacks such as:
- Man-in-the-middle attacks,
- MFA Spamming,
- SIM-Swapping attacks,
- Pass-the-cookie attacks.
- To avoid MFA attacks, organizations should choose the right MFA authentication method, such as Microsoft Authenticator, over SMS or phone calls.
- Additionally, admins can enable MFA additional context and number matching in the Azure portal to improve user sign-in security and eliminate the risk of MFA spam attacks.
