MFA UX Patterns: Security vs Friction Simulator |…

What Multi-Factor Authentication Is

Multi-Factor Authentication (MFA) is an additional layer of security that requires users to provide two or more verification factors before accessing their accounts. These factors typically include something the user knows (like a password), something the user has (such as a smartphone with a TOTP app), and something the user is (like biometric data).

MFA significantly enhances account security by making it much harder for attackers to gain unauthorized access, even if they manage to obtain one of the factors.

Security vs Friction Tradeoff

The MFA UX Patterns simulator allows you to explore how different authentication methods balance between security and user experience. Each method has its own trade-offs: stronger security often means more friction for users, while smoother login processes may introduce vulnerabilities.

For instance, a password-only system is easy to use but highly susceptible to brute-force attacks and phishing attempts, whereas hardware keys offer robust protection but can be cumbersome for frequent logins.

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Real-World Examples

Consider the case of a financial institution that uses TOTP apps. While this method significantly reduces the risk of phishing attacks, users must regularly generate and enter codes, which can lead to user frustration.

On the other hand, hardware keys like YubiKeys provide strong security without requiring frequent interaction from the user but may be less convenient for mobile users.

Phishing, SIM-Swap, and Credential Stuffing Attacks

The simulator also allows you to run various attack scenarios such as phishing, where attackers attempt to trick users into revealing their credentials.

SIM-swap attacks involve convincing a carrier to transfer a user’s phone number to another SIM card, potentially bypassing MFA methods that rely on SMS codes.

Frequently asked questions

How does the simulator determine security and friction scores?

The simulator uses predefined metrics for each MFA method based on attack success rates and user interaction steps to calculate overall security and friction scores.

Why is password-only authentication considered less secure compared to other methods?

Password-only authentication is less secure because passwords can be easily guessed, stolen through phishing, or obtained via credential stuffing attacks. It offers no additional verification factors beyond the user's knowledge.

Can all MFA methods prevent SIM-swap attacks?

No, while some MFA methods like hardware keys and TOTP apps can mitigate SIM-swap risks, others such as SMS-based codes are more vulnerable to this type of attack.

How does the simulator help in choosing an appropriate MFA method for a business?

The simulator helps businesses understand the trade-offs between security and usability by showing how different methods perform under various attack scenarios, allowing them to make informed decisions based on their specific needs.

Try it live

Everything above runs in your browser — open MFA UX Patterns: Security vs Friction Simulator and change the parameters while it is running. Nothing is installed, nothing is uploaded, the whole model lives in one tab.

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