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Best Multi-Factor Authentication for Apple iPhone

How to use two-factor authentication on your iPhone for better online security

What is two-factor authentication?

Two-factor authentication, or 2FA, is a subset of multi-factor authentication and adds an extra layer of security by requiring an additional login step. After entering a password to log in, you’ll be asked to provide a security key which can come in the form of a numerical code, barcode, QR code, or other piece of information. Only by providing the right information will you be granted access to the account.

If a password is stolen or leaked online by a hacker and someone else is trying to log in to your account, they won’t be able to without the 2-factor authentication!

How does two-factor authentication work?


Provide login credentials

The first half of the authentication process involves you entering your account login and password.


Passcode is sent to iPhone

Your chosen authenticator app will generate a unique verification code on-screen as a QR code to scan or numerical code via text message. These tokens will vary across different 2FA apps.


Verify the token

Your iPhone will then prompt you to confirm the unique token. This can be done by scanning the qr code or entering the numerical string sent to your iPhone.

Why use two-factor authentication?

The right two-factor authentication app makes your iPhone more secure, without slowing down your day.

Add extra protection

Worried about phishing attacks or malware? Two-factor authentication keeps hackers locked out.

Simplify online security

Combining 2-step verification with a password manager eliminates the need to remember your passwords!

It's free!

Many popular two-factor authentication options, including LastPass Authenticator, can be downloaded from the App Store for free.

How to set up two-factor authentication on iPhone

Choose an authenticator.

There are many options when it comes to two-factor authentication. The most popular options include apps that can be downloaded to your iPhone from the App Store, like LastPassAuthenticator, Google Authenticator, or Authy. LastPass supports many two-step verification apps.

Enable 2FA on your iPhone

On your iPhone, go to Settings, then "Your Name", and "Password Security." Then turn on two-factor authentication.

Log in with extra protection.

After you hit "Continue," the next time you log in to the account, you will be asked to confirm your password and two-factor authentication, too. Enter the code from the app on your phone or tap the approval message sent to your smartphone.

Setting up your iPhone and authentication to work with LastPass

You can use your iPhone to authenticate any device where LastPass is installed

  1. Make sure you are signed into your LastPass account in Safari or your preferred browser on a laptop or desktop computer
  2. Download the LastPass Authenticator app to your iPhone or iPad, or choose one of the other available multi-factor authentication options
  3. On your computer, in your vault under Account Settings, click on Multifactor Options and click the pencil icon next to LastPass Authenticator
  4. Set “Enabled” to yes and follow the steps to pair the app on your iPhone or iPad with your LastPass account
  5. Next time you log in to your LastPass vault, whether via the browser extension on your computer or the LastPass app on your iPhone or iPad, you’ll also get a notification to your phone where you can approve the login

Cross-platform password management


Google Chrome












Mozilla Firefox

Secure one-click login with our Firefox extension.

Apple Safari

Save keystrokes and stay secure online with our Safari password manager.

Microsoft Edge


Opera Browser


And many more

View the full list of compatible LastPass browsers and devices here.

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