Use two-factor authentication (2FA) to keep your money safe online

June 25, 2026 | Alliant Credit Union

Strong account security is essential for protecting your online accounts from fraud and suspicious activity. There are many ways to boost your account security, from creating a strong password to signing up for fraud alerts. Using multiple security methods is the smartest approach—because when it comes to online threats, you can never be too safe.

While most financial institutions, including Alliant, have security measures that monitor and detect suspicious behavior, taking advantage of every available safety tool goes a long way toward keeping your accounts secure. One of the most effective tools is two-factor authentication (2FA), which helps prevent unauthorized access to your accounts.

Although two-factor authentication is often optional, it delivers powerful extra protection with little hassle. Below, we explain what 2FA is, how it works, and how to use it effectively to strengthen your online account security.

What you’ll learn:

What is two-factor authentication?

Two-factor authentication (also called multifactor authentication or MFA) adds an extra step after you enter your username and password to verify your identity. This second step helps to protect your account even if an unauthorized user gains access to your login credentials.

Instead of accessing your account immediately after your login information is accepted, you're prompted to enter a code sent to your phone or email address. Because this code goes to a separate device a hacker is unlikely to have, it provides a reliable second layer of verification.

How does two-factor authentication work at Alliant?

Two-factor authentication requires a second confirmation of your identity beyond your login information. Once you opt in and log into your Alliant account with 2FA enabled, you will be prompted to enter a six-digit authentication code sent to your phone. Simply enter the code to confirm your identity, then continue to your account information.

If you don't have access to your phone, you can also receive the code by email. To enable this option, complete the email verification process in your personal information settings when you set up two-factor authentication (steps below). While both options are supported, we do encourage the use of text messaging instead of email, since it is more difficult for hackers to compromise your phone.

When you receive a code, keep these three things in mind:

  • Do not share it with anyone.
  • Change your password as soon as possible.
  • Check your recent transactions for fraud.

How to set up Alliant's two-factor authentication

While two-factor authentication isn't required for Alliant members, we highly recommend it for the added security it provides. To turn it on today:

  1. Log into your Alliant account.
  2. Click Profile & Settings.
  3. Go to Access & Security.
  4. Select Protect Your Account with Two-Factor Authentication.
  5. Enter your mobile number.
  6. Agree to the terms of service.

Once complete, you can rest assured your account is better protected.

Why two-factor authentication matters

Even if you think you have a clever username and password combination, no account is 100% safe from hackers. Fraud and threats to your account security are very real. While Alliant and many other financial institutions have excellent security measures in place, adding 2FA creates another barrier that keeps your accounts and finances out of the wrong hands. It only takes a few minutes to set up, but the added security can help you avoid major headaches down the road.


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