These apps mostly follow the same procedure when you’re adding a new account: you scan a QR code associated with your account, and it is saved in the app. Popular options include Authy, Google Authenticator, Microsoft Authenticator, and Hennge OTP (iOS only). They also offer flexibility when you’re traveling to a place without cellular service. What are authenticator apps?Īuthenticator apps are considered more secure than texting. For more information on how security keys work, check out our security key guide. The USB- or NFC-based hardware plugs into your computer or mobile device to authenticate, making it harder for hackers to intercept since security keys can’t be duplicated. If you want something that doesn’t depend on software to keep your device safe, you can also opt for a security key.
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