Duo's Mac authorization plugin supports OS X 10.10 (Yosemite) and all later macOS versions, which includes: 10.10 (Yosemite) 10.11 (El Capitan) 10.12 (Sierra). Specify true to allow user logon without completing two-factor authentication if the Duo Security cloud service is unreachable or false to prevent user logon when Duo is unreachable.
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- Two-factor authentication is built directly into iOS, macOS, tvOS, watchOS, and Apple websites. It supports several methods to trust devices and deliver verification codes, and offers a more streamlined user experience. Two-step verification is an older method that uses SMS to deliver verification codes.
- Turn on two-factor authentication for your Apple ID. On your Mac, choose Apple menu System Preferences, click Apple ID, then select Password & Security in the sidebar. Open Apple ID preferences for me. Click Set Up Two-Factor Authentication, then click Continue. Answer the verification questions.
Duo Authentication for macOS Logon prompts for secondary approval when you log in to your Mac. Once installed, Duo authentication is required for new console logons, but not when unlocking the screensaver or you're already logged-on and just waking the system from sleep. Jun 05, 2019 One of the more common ways of using two-factor authentication is Google Authenticator. This is a free smartphone app from Google available for both Android and iOS.
Who can turn on two-factor authentication?
You can use two-factor authentication with your Apple ID if you have a device that's using the latest iOS or macOS, or if you have access to a web browser and a phone number.* Here are the minimum recommended system requirements for all devices that you use with your Apple ID:
- iPhone, iPad, or iPod touch with iOS 9 and later
- Mac with OS X El Capitan and iTunes 12.3 and later
- Apple Watch with watchOS 2 and later
- Apple TV HD with tvOS
- Windows PC with iCloud for Windows and iTunes 12.3.3 and later
We also recommend that you have a valid credit card on file in your account. This information may be requested to help verify your identity if you forget your password.
While most iCloud users can now turn on two-factor authentication, certain account types may still be ineligible at Apple’s discretion.
Some Apple IDs created in iOS 10.3 or macOS 10.12.4 and later are protected with two-factor authentication by default. In this case, you see that two-factor authentication is already turned on.
* Learn more about why you need a trusted phone number for two-factor authentication.
Turn on two-factor authentication for your Apple ID
There are two ways to turn on two-factor authentication.
Set up from a new device
If you're setting up a new device and two-factor authentication, and you meet all the recommended system requirements, you might see these screens after you sign in during setup assistant.
To proceed, tap Continue and enter a phone number that can be used to receive verification codes when signing in on a new device. After you verify this phone number, two-factor authentication will turn on automatically.
Set up from a device you're already using
If you're not setting up a new device, make sure that you’re using iOS 9 or later on your iPhone, iPad, or iPod touch or OS X El Capitan or later on your Mac and follow these steps to turn on two-factor authentication.
On your iPhone, iPad, or iPod touch:
- Go to Settings > [your name] > Password & Security. If you're using iOS 10.2 or earlier, Go to Settings > iCloud. Tap your Apple ID > Password & Security.
- Tap Turn on Two-Factor Authentication.
- Tap Continue.
Google Authentication App
On your Mac:
If you're using macOS Catalina:
- Choose Apple menu > System Preferences > Apple ID.
- Click Password & Security.
- Next to Two-Factor Authentication, click Turn On.
If you're using macOS Mojave or earlier:
- Choose Apple menu > System Preferences > iCloud > Account Details.
- Click Security.
- At the bottom of your screen, look for a button that says Turn on Two-Factor Authentication.
If you don’t meet the recommended system requirements on all the devices you use with your Apple ID, or if you don’t have a valid credit card on file, you'll receive a related warning message. Read the message before proceeding and consider updating your devices or adding credit card information to your account to ensure the best possible experience when signing in or resetting your password.
Create an Apple ID with two-factor authentication on the web
If you don't have an iPhone, iPad, iPod touch, or Mac, you can create a new Apple ID with two-factor authentication on the web.
Learn how to create an Apple ID on the web.
Where is two-factor authentication for Apple ID available?
You can set up two-factor authentication in these continents, countries, or regions. When additional countries or regions are added, a link to turn on two-factor authentication will appear automatically on compatible devices.
Antarctica
Africa, Middle East, and India
- Afghanistan
- Algeria
- Angola
- Armenia
- Azerbaijan
- Bahrain
- Bangladesh
- Benin
- Botswana
- Burkina Faso
- Burundi
- Cameroon
- Cape Verde
- Central African Republic
- Chad
- Côte d’Ivoire
- Comoros
- Democratic Republic of the Congo
- Djibouti
- Egypt
- Ethiopia
- Equatorial Guinea
- Eritrea
- Gabon
- Gambia
- Ghana
- Guinea
- Guinea-Bissau
- India
- Iraq
- Israel
- Jordan
- Kenya
- Kuwait
- Lebanon
- Lesotho
- Liberia
- Libya
- Madagascar
- Malawi
- Mali
- Mauritania
- Mauritius
- Morocco
- Mozambique
- Namibia
- Niger
- Nigeria
- Oman
- Palestinian Territories
- Qatar
- Reunion Island
- Republic of the Congo
- Rwanda
- Sao Tome and Principe
- Saudi Arabia
- Senegal
- Seychelles
- Sierra Leone
- Somalia
- South Africa
- Sudan
- Swaziland
- Tajikistan
- Tanzania
- Togo
- Tunisia
- Turkmenistan
- Uganda
- United Arab Emirates
- Western Sahara
- Yemen
- Zambia
- Zimbabwe
Asia Pacific
- American Samoa
- Australia
- Bhutan
- Brunei
- Cambodia
- China mainland
- Cocos (Keeling) Islands
- Hong Kong
- Macao
- Taiwan
- Christmas Island
- Cook Islands
- Fiji
- French Polynesia
- Guam
- Indonesia
- Japan
- Kazakhstan
- Kiribati
- Kyrgyzstan
- Laos
- Malaysia
- Marshall Islands
- Micronesia
- Mongolia
- Myanmar
- Nauru
- Nepal
- New Caledonia
- Niue
- New Zealand
- Northern Mariana Islands
- Pakistan
- Paulau
- Papua New Guinea
- Phillipines
- Samoa
- Singapore
- Solomon Islands
- South Korea
- Sri Lanka
- Thailand
- Timor, East
- Tokelau
- Tonga
- Tuvalu
- Uzbekistan
- Vanuatu
- Vietnam
- Wallis and Futuna
Europe
- Albania
- Andorra
- Austria
- Belarus
- Belgium
- Bosnia and Herzegovina
- Bulgaria
- British Indian Ocean Territory
- Croatia
- Cyprus
- Czech Republic
- Denmark
- Estonia
- Faroe Islands
- Finland
- France
- Georgia
- Germany
- Gibraltar
- Greece
- Greenland
- Guernsey
- Hungary
- Iceland
- Italy
- Ireland
- Isle of Man
- Jersey
- Kosovo
- Latvia
- Liechtenstein
- Lithuania
- Luxembourg
- North Macedonia
- Maldives
- Malta
- Moldova
- Monaco
- Montenegro
- Netherlands
- Netherlands Antilles
- Norway
- Pitcairn
- Poland
- Portugal
- Romania
- Russia
- Saint Helena
- San Marino
- Serbia
- Slovakia
- Slovenia
- Spain
- Svalbard and Jan Mayen
- Sweden
- Switzerland
- Turkey
- Ukraine
- United Kingdom
Latin America and the Caribbean
- Anguilla
- Antigua and Barbuda
- Argentina
- Aruba
- Bahamas
- Barbados
- Belize
- Bermuda
- Bolivia
- Brazil
- British Virgin Islands
- Cayman Islands
- Chile
- Colombia
- Costa Rica
- Dominica
- Dominican Republic
- Ecuador
- El Salvador
- Falkland Islands
- French Guiana
- Grenada
- Guadeloupe
- Guatemala
- Guyana
- Haiti
- Honduras
- Jamaica
- Martinique
- Mexico
- Nicaragua
- Panama
- Paraguay
- Peru
- Saint Martin
- Sint Maarten
- St. Kitts
- St. Lucia
- St. Vincent and the Grenadines
- Suriname
- Trinidad and Tobago
- Turks and Caicos Islands
- Uruguay
- U.S. Virgin Islands
- Venezuela
The United States, Canada, and Puerto Rico
- Canada
- Puerto Rico
- Saint Pierre and Miquelon
- United States
Two-factor authentication is a highly recommended feature available for Apple accounts. While it isn’t perfect, it goes a long way toward protecting your Apple ID from being compromised if someone gets hold of your password.
On the other hand, there does appear to be a bug concerning 2FA and the Mail app in macOS.
Basically, if you upgrade to 2FA on your Apple account, you may run into issues actually using your iCloud email through the standard Mail app. Note that this only happens if you upgrade to 2FA on a device other than your Mac.
But if the bug has impacted you, you may be prompted to enter a password the next time you open Mail.
Typically, this means that you’ve previously set up iCloud mail before enabling 2FA. Although you can try to enter any past passwords to authenticate, it won’t always work.
Basically, it all comes down to how macOS handles email accounts and other facets of iCloud. There are several system platforms that automate iCloud in Mac.
RELATED:
How to Fix Mail App issue after 2FA upgrade on your MacBook
To fix the password prompting on Mail after upgrading to 2FA, you’ll want to follow several steps in order. Here’s what to do.
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- Open the Mail app.
- Click on Mail in the top menu bar.
- Select Preferences.
- Click on Accounts.
You may run into two possibilities here.
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If your iCloud account displays the iCloud logo and the labels “iCloud” and “IMAP,” then you should technically be good to go. (Note: In a bit, we’ll cover what to do if this is the case and it’s still not working.)
On the other hand, if there’s an @ symbol next to the email account, then the account in question is not set up properly. In these cases, you’ll want to follow these steps.
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- Select the email account
- Click on the minus (-) icon near the bottom of the list.
- Confirm the deletion.
Then, you’ll want to go to > System Preferences > iCloud.
Make sure you’re logged into iCloud. If you weren’t, this could have been causing the issue. Log in and you may see your iCloud email appear; it should now work normally.
On the other hand, if you are already logged into iCloud, take a look at the checkbox next to Mail.
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- If it’s unchecked, check it. This will sync your iCloud mail settings.
- If it happens to be checked, uncheck it and check it again. This will reset and sync the connection.
While this will reset and possibly fix most 2FA-related Mail syncing issues, there’s the chance that something else is wrong with your account.
If Mail still isn’t working after the above steps (or your iCloud account has the IMAP and iCloud logo mentioned earlier), you’ll want to contact Apple Support.
We hope that you found this short article helpful. Please let us know if you have any comments.
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Mike is a freelance journalist from San Diego, California.
While he primarily covers Apple and consumer technology, he has past experience writing about public safety, local government, and education for a variety of publications.
He’s worn quite a few hats in the journalism field, including writer, editor, and news designer.