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Two-factor authentication is a form of multi-factor authentication that can be used to provide additional security for your account in the event that it is compromised. If enabled, you will need both your password and your mobile device to log in to your account. This means that, even if a hacker were to gain access to your password, they still wouldn't be able to get into your account unless they also managed to get your mobile device. This added step can drastically improve your account security and make it much harder for it to be compromised.
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