MFA is based on three main types of verification:
• Something the user knows — such as a password, PIN, or the answer to a security question,
• Something the user has — like a smartphone, chip card, or physical security key,
• Something the user is — biometric data such as a fingerprint, face, or iris scan.
The effectiveness of MFA is well-documented. Microsoft reports that enabling MFA blocks nearly 100% (specifically, 99.9%) of automated hacking attempts. This is especially important considering that 81% of security breaches result from weak or reused passwords.
Why should you enable MFA? Mainly because of:
• Increased security — even if someone knows your password, they can’t take over your account without the second factor,
• Better protection against phishing and credential theft,
• Safeguarding sensitive information, especially for banking and work accounts,
• Immediate alerts about suspicious login attempts,
• Compliance with company and institutional requirements — MFA is becoming the standard, especially in regulated sectors.
The most common MFA methods include:
• SMS codes sent to your phone,
• Apps that generate temporary codes, like Google Authenticator,
• Push notifications for login approval,
• Physical keys such as YubiKey,
• Biometric recognition.
Activating MFA is usually very simple — just go to your account settings and enable the appropriate option. A good starting point is to secure your most critical services, such as email, online banking, or professional accounts.
While MFA adds an extra step to the login process, this small effort leads to a major boost in security. Once set up, it becomes an indispensable guardian of your data and identity in the digital world.