MFA Blocks 99.9% of Automated Attacks

Multi-factor authentication is the single most effective security control available to small businesses. Microsoft reports that MFA blocks 99.9% of automated account compromise attacks. Yet many Metro Detroit businesses still rely on passwords alone — leaving themselves exposed to credential stuffing, phishing, and brute force attacks.

How MFA Works

MFA requires users to verify their identity using two or more factors: something you know (password), something you have (phone or hardware token), or something you are (fingerprint or face). Even if an attacker steals your password, they can't access your account without the second factor. It's simple in concept and increasingly simple to implement.

MFA Implementation Priorities

Start with your highest-risk accounts: email (the master key to everything else), VPN and remote access, financial systems, cloud services like Microsoft 365 and Google Workspace, and administrative accounts. These accounts, if compromised, give attackers the most damage potential. Protect them first.

Choosing the Right MFA Method

Authenticator apps (Microsoft Authenticator, Google Authenticator) are more secure than SMS codes, which can be intercepted. Hardware tokens (YubiKey) offer the highest security for privileged accounts. For most Metro Detroit businesses, authenticator apps strike the right balance of security and convenience. MetroTec can deploy MFA across your organization with minimal disruption.