![]() If you don’t have the key, you can’t get in. After syncing, logins will prompt you to insert your key into whatever computer or device you’re using. Security keys are small, portable pieces of hardware that can be synced with your online accounts, ensuring that the only way to get into those accounts is to be in possession of the physical key. However, I would argue the best way to set up 2FA is by investing in a security key. Generally speaking, you will be asked to provide another piece of identifying personal information - like a texted code to your phone or a biometric identifier - to ensure you are who you say you are. Many online accounts will give you the option to enact 2FA (check out Twitter’s how-to, for example). In essence, 2FA is just a way to ensure that the person logging into your online accounts is you. You’ve probably heard it before but we’ll say it again: two-factor authentication is a really good idea.
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