Use two-factor authentication (2024)

Table of Contents

Personal Safety User Guide for Apple devices

  • Welcome
  • Personal safety at a glance
  • What’s new in personal safety
    • Use Safety Check to stop sharing
    • How Safety Check works
    • Additional considerations when using Safety Check
    • Intro to review and take action
    • Secure AirDrop and NameDrop
    • Securely control whom you share content with from iPhone, iPad, and Apple Watch
    • Securely control whom you share content with from Mac
      • Share or stop sharing your location
      • Manage automatic ETA sharing in Maps
      • Manage Location Services settings
      • Stop and remove location metadata in Photos
      • Stay safe with AirTag
    • Safely manage how you forward content
    • Reject unknown sign-in attempts
    • Record suspicious activity
    • Store your data securely in iCloud
    • Delete suspicious content
    • Manage Family Sharing settings
    • Avoid fraudulent requests to share info
    • Securely control your Home accessories
    • How to erase all content and settings
    • Restore the data you backed up
    • Intro to privacy and safety tools
    • Update your Apple software
    • Set a unique passcode or password
    • Secure your iPhone or iPad with Face ID
    • Secure your devices with Touch ID
    • Delete unknown fingerprints from iPhone or iPad
    • Add or delete fingerprints on your Mac
    • Keep your Apple ID secure
    • Use two-factor authentication
    • Help prevent being locked out of your device
    • Keep your device, app, and website passwords secure on iPhone and iPad
    • Manage shared password and passkeys
    • App privacy features in Apple products
    • Harden your devices against mercenary spyware
    • Manage safety settings in Messages
    • Use Check In for Messages
    • Block calls and messages
    • Receive warnings about sensitive images and videos on iPhone, iPad, and Mac
    • Keep your browsing history private
    • Make an emergency call or text on iPhone or Apple Watch
    • Obtain evidence related to another person’s account
    • See who has access to your iPhone or iPad
    • How to stop sharing your iPhone or iPad content
    • How to stop sharing your iPhone or iPad location
  • Copyright
Use two-factor authentication (1)

Two-factor authentication is an extra layer of security for your Apple ID designed to ensure that you’re the only person who can access your account, even if someone knows your password. You can set up two-factor authentication on your iPhone, iPad, and Mac.

Use two-factor authentication (2)

Find out how: To view a task below, select the plus button Use two-factor authentication (3) next to its title.

Set up two-factor authentication on your iPhone or iPad

  1. Go to Settings Use two-factor authentication (4) > [your name] > Password & Security.

  2. Tap Turn on two-factor authentication, then tap Continue.

  3. Enter a trusted phone number, a phone number where you want to receive verification codes for two-factor authentication (it can be the number for your iPhone).

    You can choose to receive the codes by text message or automated phone call.

  4. Tap Next.

  5. Enter the verification code sent to your trusted phone number.

    To send or resend a verification code, tap “Didn’t get a verification code?”

    You won’t be asked for a verification code again on your iPhone unless you sign out completely, erase your iPhone, sign in to your Apple ID account page in a web browser, or need to change your Apple ID password for security reasons.

After you turn on two-factor authentication, you have a two-week period during which you can turn it off. After that period, you can’t turn off two-factor authentication. To turn it off, open your confirmation email and click the link to return to your previous security settings. Keep in mind that turning off two-factor authentication makes your account less secure and means you can’t use features that require a higher level of security.

Set up two-factor authentication on your Mac

  1. Do one of the following:

    • On your Mac running macOS 13 or later: Choose Apple menu Use two-factor authentication (5) > System Settings, click Apple IDUse two-factor authentication (6), then select Password & Security in the sidebar.

    • On your Mac running macOS 12 or earlier: Choose Apple menu Use two-factor authentication (7) > System Preferences, click Apple IDUse two-factor authentication (8), then select Password & Security.

  2. Click Set Up Two-Factor Authentication, then click Continue.

  3. Answer the verification questions, then click Verify.

  4. Enter your phone number for verification, select a verification method, then click Continue.

  5. When asked, verify your identity with the six-digit verification code sent to your trusted phone. You won’t be asked for a verification code again on your Mac unless you sign out your Apple ID completely, erase your Mac, or need to change your password for security reasons.

Security keys for Apple ID

A security key is a small external device that looks like a thumb drive or tag, and that can be used for verification when signing in with your Apple ID using two-factor authentication. Security Keys for Apple ID is an optional advanced security feature designed for people who want extra protection from targeted attacks, such as phishing or social engineering scams. Because you use a physical key instead of the six-digit code, security keys strengthen the two-factor authentication process and help prevent your second authentication factor from being intercepted or requested by an attacker.

To learn more about security keys, see the Apple Support article About Security Keys for Apple ID.

See alsoApple Support article: Change your Apple IDApple Support article: If you forgot your Apple ID passwordApple Support article: If you think your Apple ID has been compromisedAdditional safety resources

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Use two-factor authentication (2024)

FAQs

Use two-factor authentication? ›

Two-factor authentication (2FA), sometimes referred to as two-step verification or dual-factor authentication, is a security process in which users provide two different authentication factors to verify themselves. 2FA is implemented to better protect both a user's credentials and the resources the user can access.

How do we use two-factor authentication? ›

Two-factor authentication (2FA) is a security system that requires two separate, distinct forms of identification in order to access something. The first factor is a password and the second commonly includes a text with a code sent to your smartphone, or biometrics using your fingerprint, face, or retina.

Why do I need 2 factor authentication? ›

If a website has ever sent a numeric code to your phone for you to enter to gain access, for instance, you've completed a multi-factor transaction. 2FA is essential to web security because it immediately neutralizes the risks associated with compromised passwords.

Is it safe to enable two-factor authentication? ›

Benefits of 2FA Implementation

2FA provides an additional layer of security beyond traditional username and password combinations. This extra step ensures that even if login credentials are compromised, unauthorized access is prevented without the second factor.

What is the two-factor authentication required? ›

Two-factor authentication is implemented to protect both the user's credentials and the resources the user can access.

What is an example of two factor authentication? ›

Using two knowledge factors like a password and a PIN is two-step authentication. Using two different factors like a password and a one-time passcode sent to a mobile phone via SMS is two-factor authentication.

How do I get a two-factor authentication code? ›

If your device is online:
  1. Go to Settings > [your name].
  2. Tap Sign-In & Security > Two Factor Authentication.
  3. Tap Get Verification Code.
Apr 19, 2024

What happens if I turn off two-factor authentication? ›

Your account is more secure when you need a password and a verification code to sign in. If you remove this extra layer of security, you will only be asked for a password when you sign in. It might be easier for someone to break into your account.

What is better than 2 factor authentication? ›

2FA is a better option if businesses want to ensure a frictionless and secure user journey and experience. However, MFA is a secure solution, and it can be implemented for a seamless user journey, but it should rely on the highest security standards and lowest friction methods possible.

Can you still be hacked with two-factor authentication? ›

Two-factor authentication is a powerful security measure that adds an extra layer of protection to user accounts. While it is not immune to hacking attempts, implementing 2FA significantly reduces the risk of account breaches.

What can someone do with your two-factor authentication code? ›

They'll enter that code into the system, finalize the login for that website, and immediately change the password, security settings, personal information, and more associated with that account – so you won't be able to log into it again. And worse, they now have free reign to do whatever they want.

Do you need a strong password with two-factor authentication? ›

But it's the combination of both a secure password and a secondary credential via 2FA that makes it so difficult for cyber criminals to breach. Both a strong password and two‑factor authentication are absolutely crucial for securing online identities, explained Laura Kankaala, F‑Secure's Threat Intelligence Lead.

What does two-factor authentication require? ›

To use two-factor authentication, you need at least one trusted phone number on file where you can receive verification codes. If you have a phone number that isn't associated with your trusted device, consider verifying it as an additional trusted phone number.

Does two-factor authentication require security questions? ›

If you don't want security questions or you're concerned about forgetting the answers, you can set up two-factor authentication.

When using two-factor authentication which is the best method to use? ›

The most effective two-factor authentication (2FA) methods are app-based and hardware-based. App-Based (e.g., Google Authenticator, Authy): They're more secure than SMS-based 2FA since they're less vulnerable to SIM-swapping attacks.

What is the 2-step verification process? ›

2-step verification adds an extra layer of security to your Google Account. In addition to your username and password, you'll enter a code that Google will send you via text or voice message upon signing in.

How do I use two-factor authentication on my computer? ›

How to use two-step verification with your Microsoft account
  1. Sign in to your Microsoft account Advanced security options. Sign in.
  2. Under Additional security and Two-step verification choose Turn on or Turn off.
  3. Follow the instructions shown on the screen.

How does authentication work? ›

Authentication is used by a client when the client needs to know that the server is system it claims to be. In authentication, the user or computer has to prove its identity to the server or client. Usually, authentication by a server entails the use of a user name and password.

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