how toTurn on 2-Step Verification in Gmail and Facebook?

TURN ON GMAIL 2-STEP VERIFICATION -

When you enable 2-Step Verification (also known as two-factor authentication), you add an extra layer of security to your account. You sign in with something you know (your password) and something you have (a code sent to your phone).

Set up 2-Step Verification-

1. Go to the 2-Step Verification page. You might have to sign in to your Google Account.
2. In the "2-Step Verification" box on the right, select Start setup.
3. Follow the step-by-step setup process.

Once you're finished, you'll be taken to the 2-Step Verification settings page. Review your settings and add backup phone numbers. The next time you sign in, you'll receive a text message with a verification code. You also have the option of using a Security Key for 2-Step Verification.

Note: To ensure that you can access your account in the future, add an email recovery option as well.

TURN ON LOGIN APPROVALS IN FACEBOOK-

Login approvals are a security feature similar to login alerts, but with an extra security step. If you turn on login approvals, you'll be asked to enter a special security code each time you try to access your Facebook account from a new computer, mobile phone or browser.

To turn on login approvals:

• Go to your Security Settings
• Click on the Login Approvals section
• Check the box and click Save Changes

After you turn on login approvals:

• If you haven't saved the device (ex: computer) or browser you're using, you'll be asked to do so when you turn on login approvals. This way you won't have to enter a code when you log in from any of your recognized devices or browsers. Don't click Save this browser if you're using a public computer (ex: a library computer).
• We need to be able to remember your computer and browser information so we can recognize it next time you log in. Some browser features block this. If you've turned on private browsing or set up your browser to clear your history every time it closes, you might have to enter a code every time you log in. 

Note: You need to have a mobile phone number listed on your account to turn on login approvals. You can add one to your account when you turn on login approvals.

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