Which technology should be used for non-disruptive and user-friendly MFA implementation?

Push notifications are considered an effective technology for implementing non-disruptive and user-friendly multi-factor authentication (MFA). This method leverages users' mobile devices to send real-time alerts or prompts to confirm a login attempt. They are typically unobtrusive and allow users to respond to authentication requests with a simple tap or swipe, leading to a smoother user experience.

This approach minimizes the cognitive load on users, as they do not need to remember or enter a code manually, which can often lead to frustration. Push notifications can also seamlessly integrate with mobile applications, making them ideal for environments where quick and efficient authentication is crucial.

Other methods, such as one-time passwords or email tokens, involve additional steps, requiring users to retrieve and input a code. This can be disruptive and may hinder the overall user experience. Hardware authentication often requires physical devices that users must manage, which might not be as user-friendly as push notifications. Thus, push notifications strike a balance between security and convenience, making them suitable for a non-disruptive MFA implementation.