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two factor authentication

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Log In Using a Security Key (USB Device) Supported browsers include Chrome 70 or later, Firefox 60 or later, Safari 13 or later, or Microsoft Edge 79 or later.
If you don't see the Expand Where You Use Two-Step Login tab, your unit's leadership has mandated this expanded use of two-factor authentication. You will not be able to opt out of using Two-Step Login with all services protected by
User Experience My USB security key does not work for Two-Step Login in the Firefox browser.
User Experience When you use your U2F security key, you see the following message:

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