How does MFA prevent 99.9% of attacks?

Microsoft's research shows that MFA blocks over 99.9% of automated account compromise attempts. Even if attackers steal passwords through phishing or breaches, they cannot access accounts without the second factor.

What is phishing-resistant MFA?

Phishing-resistant MFA methods like FIDO2 hardware keys and device-bound biometrics cannot be phished because they cryptographically verify the legitimate website. Traditional MFA like SMS codes can be intercepted through real-time phishing attacks.

What's a realistic implementation timeline?

For organizations under 500 users, 3-6 months is typical. Larger enterprises often need 6-12 months to handle change management, training, and help desk scaling. Rushing MFA rollout can lead to user frustration and increased support tickets.

Should I require MFA for all users?

Yes, aim for 100% coverage. Attackers target the weakest links. Even 90% adoption leaves 10% of accounts as potential entry points. Prioritize privileged accounts, remote workers, and users with access to sensitive data first.

How do I handle MFA for contractors and temporary workers?

Use flexible MFA methods that don't require company devices. Authenticator apps work on personal phones, and some solutions offer email-based one-time codes as a fallback. Consider shorter enrollment workflows for temporary access.

Technology

MFA Adoption Calculator

Plan your multi-factor authentication deployment with adoption metrics, cost analysis, ROI projections, and security improvement estimates based on Microsoft's 99.9% protection statistic.

Total Users

Current MFA Users

Target MFA Percentage

MFA Method

Implementation Timeline

License Type

Avg. Incident Cost

Est. Annual Incidents

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Plan Your MFA Deployment

Multi-factor authentication (MFA) prevents 99.9% of account compromise attacks according to Microsoft. This calculator helps you plan your MFA rollout by estimating adoption metrics, implementation costs, and expected ROI from reduced security incidents.

Why Calculate MFA Adoption?

Prove ROI to Leadership

Quantify the financial benefits of MFA investment with concrete savings estimates and payback periods.

Plan Resource Allocation

Understand monthly enrollment targets, training requirements, and IT support needs.

Compare MFA Methods

Evaluate security vs. usability tradeoffs between SMS, authenticator apps, and hardware tokens.

Meet Compliance Requirements

Track progress toward MFA mandates from PCI-DSS, HIPAA, SOC2, and cyber insurance policies.

How to Calculate MFA Adoption

Frequently Asked Questions

For most organizations, authenticator apps offer the best balance of security and usability. Hardware tokens (FIDO2) provide the strongest protection and are phishing-resistant, ideal for privileged accounts. Avoid SMS-only MFA for high-risk users due to SIM-swap vulnerabilities.