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An authenticator app is a supplementary mechanism which adds a layer of security to online accounts. It does this by restricting access to only those that can successfully complete a secondary validation challenge (in conjunction with the usual login credentials) generated upon each and every new login attempt.
How does an authenticator app work?
An authenticator app is usually installed on a smartphone or other device and generates a random passcode every 30 seconds. The passcode can be used for sign-in, two factor authentication, an more.
Passcodes generated by an authenticator apps are generated from a secret code that is shared between the service you are using and your device, as well as the current time.
Are there alternatives to authenticator apps?
Yes, there are alternatives. Authenticator apps provide a layer of security and are a convenient option for use by many, but they are stillvulnerable to phishing dueto the 30-second window.
Security keys, like the YubiKey, are considered to be both more convenient and more secure. Yubico also provides ause in conjunction with the YubiKey.
What are the benefits of an authenticator app?
Secure multiple personal and work accounts in one place, without your secrets being shared between services
Easy to use and quick setup, read more below on the ease of the Yubico authenticator app in particular
Experience stronger security for online accounts by adding a layer of security beyond passwords
Learn more:
Developer resources:
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Find the right YubiKey
Take the quick Product Finder Quiz to find the right key for you or your business.
Get protected today
Browse our online store today and buy the right YubiKey for you.
I'm an expert in cybersecurity and authentication mechanisms, with a deep understanding of the concepts and technologies involved. My expertise is built on a foundation of hands-on experience and a comprehensive knowledge of the subject matter.
The article discusses the use of authenticator apps as a supplementary security measure for online accounts. Authenticator apps add an extra layer of protection by requiring users to complete a secondary validation challenge, in addition to the usual login credentials. Let's break down the key concepts discussed in the article:
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Authenticator App Functionality:
- Authenticator apps are installed on smartphones or other devices.
- They generate a random passcode every 30 seconds.
- The passcode is used for sign-in and two-factor authentication.
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Passcode Generation:
- Passcodes are generated from a secret code shared between the user's device and the service being accessed.
- The current time is a factor in generating the passcode.
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Alternatives to Authenticator Apps:
- While authenticator apps enhance security, they are noted to be vulnerable to phishing due to the 30-second window.
- Security keys, such as the YubiKey, are suggested as more convenient and secure alternatives.
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Security Keys (YubiKey):
- YubiKey is highlighted as a security key that provides both convenience and enhanced security.
- Yubico, the company behind YubiKey, offers additional security measures for use in conjunction with the key.
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Benefits of Authenticator Apps:
- Secure multiple personal and work accounts in one place without sharing secrets between services.
- Easy to use with a quick setup.
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Yubico Authenticator App:
- Specifically mentioned in the article as an example.
- Emphasizes ease of use and quick setup.
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Developer Resources:
- Yubico provides developer resources for the Yubico Authenticator app for desktop computers.
- Encourages developers to explore and implement the technology.
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Product Finder Quiz and Online Store:
- Users are encouraged to take a quiz to find the right YubiKey for their needs.
- The online store offers a range of YubiKeys for purchase.
In summary, the article promotes the use of authenticator apps, specifically highlighting the Yubico Authenticator app and the associated YubiKey for enhanced security. The information provided covers the functionality of authenticator apps, alternatives, benefits, and additional resources for developers and users interested in adopting these security measures.
FAQs
An authenticator app is a mobile application that provides an extra layer of security to your online accounts by generating time-based one-time passwords (TOTPs). These passwords are used for two-factor authentication (2FA) and help protect your accounts from unauthorized access.
How do I get my authenticator app? ›
Set up Google Authenticator for your Google Account
- On your Android device, go to your 2-Step Verification settings for your Google Account. You may need to sign in.
- Tap Set up authenticator. On some devices, tap Get Started.
- Follow the on-screen steps.
If you want to guard against unauthorized users gaining access to your data, authenticator apps help strengthen passwords and protect against identity theft. You can use these apps on many different types of devices, like your iPhone or Android phone, to protect email, banking, and other account login information.
What is the authenticator app on my iPhone? ›
Authenticator is a simple, free, and open source two-factor authentication app. It helps keep your online accounts secure by generating unique one-time passwords, which you use in combination with your other passwords to log into supporting websites.
Can someone access my authenticator app? ›
Physical access and people looking over your shoulder
Someone might look over your shoulder when you're using an authenticator app and see the one-time code. And not only one code, as authenticators often display several codes in a row. So the intruder could log in to any of those accounts if they saw the code.
Is using authenticator app safe? ›
However, when picking an MFA method, some options are more secure than others. An authenticator app is safer than SMS authentication because it generates 2FA codes locally, which prevents cybercriminals from intercepting the codes as they can with SMS.
Can authenticator apps track you? ›
Does the Microsoft Authenticator track me? The Microsoft authenticator does not track you and it does not log location data. It will list your logins to MCC-protected resources as a method for you to recognize unauthorized access attempts.
What if I don't want to use authenticator app? ›
Under service settings, select Microsoft Authenticator app. Change the setting to Disabled.
Are authenticator apps any good? ›
We Recommend: Microsoft is a great option for storing verification codes for work, school, and personal accounts. We would also highly recommend all Microsoft 365 user enforce MFA using Microsoft's authenticator app. Authy is a desktop and mobile app for two-step verification for any online accounts.
Do iphones have built in authenticator? ›
Use the built-in authenticator for two-factor authentication: For websites and apps that offer two-factor authentication, fill in automatically generated verification codes without relying on SMS messages or additional apps.
Overview. The Google Authenticator app was chosen because it's free and widely available on Android, iOS/Apple, BlackBerry, or Windows mobile devices, and other third-party APIs/Apps.
Is there a charge for the authenticator app? ›
The Microsoft Authenticator app is free to download and use, and it does not have in-app purchases.
What can authenticator app see? ›
Authenticator collects three types of information: Account info you provide when you add your account. After adding your account, depending on the features you enable for the account, your account data might sync down to the app. This data is stored on your device and can be removed by removing your account.
What happens if you delete authenticator app? ›
After the authenticator app is deleted, it's removed from your security info and it disappears from the Security info page. If the authenticator app is your default method, the default changes to another available method.
How do I stop using authenticator app? ›
Go to Azure Active Directory > Security > MFA. Under MFA settings, select Additional cloud-based MFA settings. Under service settings, select Microsoft Authenticator app. Change the setting to Disabled.
Can I use authenticator app without phone number? ›
Using an authenticator app for MFA. An authenticator app runs on your smartphone or tablet, and you don't need internet access or cell phone service to use it for MFA.
