---
title: "Using Multi-factor Authentication (MFA) in 8x8 X Series"
slug: "using-multi-factor-authentication-mfa-in-8x8-x-series"
updated: 2026-05-17T17:54:44Z
published: 2026-05-21T21:28:43Z
canonical: "help.8x8.com/using-multi-factor-authentication-mfa-in-8x8-x-series"
---

> ## Documentation Index
> Fetch the complete documentation index at: https://help.8x8.com/llms.txt
> Use this file to discover all available pages before exploring further.

# Using Multi-factor Authentication (MFA) in 8x8 X Series

## Objective

Using multi-factor authentication (MFA) in 8x8 X Series.

## Applies To

- 8x8 X Series
- Login Security

## Procedure

1. During their first login after multi-factor authentication is enabled, users will be prompted to configure their second factor. Users can choose from SMS, e-mail, or authenticator apps. ![](https://cdn.us.document360.io/e3a59e39-abd3-4423-964c-0a4008dc5673/Images/Documentation/18762?sv=2026-02-06&spr=https&st=2026-11-03T23%3A11%3A44Z&se=2026-11-04T00%3A11%3A44Z&sr=c&sp=r&sig=zsRn5Tk%2BEH3zh731kph1NAVyPGfA8rlvfLxZrGXPW94%3D)
2. Once configured, users are logged in as normal. During the subsequent login, users can choose to not be prompted for the second factor on the same device for 90 days. ![](https://cdn.us.document360.io/e3a59e39-abd3-4423-964c-0a4008dc5673/Images/Documentation/18763?sv=2026-02-06&spr=https&st=2026-11-03T23%3A11%3A44Z&se=2026-11-04T00%3A11%3A44Z&sr=c&sp=r&sig=zsRn5Tk%2BEH3zh731kph1NAVyPGfA8rlvfLxZrGXPW94%3D)

> [!NOTE]
> Note
> 
> Using a different browser, clearing browser cookies, or using incognito mode will prompt for multi-factor authentication even if the box was checked.