2FA (Two-Factor Authentication)
Two-factor authentication (2FA) adds a second login step — a code from an app, SMS, or email — on top of the password, so a stolen password alone cannot open the account.
When you buy an account, the first thing to do after taking full email access is enable your own 2FA, which locks the previous owner out for good. Step-by-step in how to enable 2FA.
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