With that said, using text message MFA is still better than nothing. With an authentication app, the codes are generated and stored temporarily on your phone and expire within a short timeframe. The primary reason is that it’s easier for a hacker to gain access to your text messages than it is to gain physical access to your phone. Multi-factor authentication means you'll type a code from your phone or authenticator app to access your account. Using an authenticator app such as Microsoft Authenticator, Google Authenticator, or DUO, is more secure than SMS text messages. This can prevent hackers from taking over if they know your password. Using multi-factor authentication (MFA) is one of the easiest and most successful ways to increase the security of your accounts.
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