This is the fast changing digital world, where security has become the subject of optimum importance. Even slight mistake or carelessness can cause irreparable damage. In the wake of the rampant cyber crime and jaw-dropping audacity of hackers in stealing confidential data, it pays to be extra caution.
To offer an utmost safeguard to your Apple ID or iCloud account, Apple has introduced Two-Factor authentication. When enabled, it will allow you to access your account only on the devices you completely trust. The best thing about it is that even if someone has succeeded in stealing your password, he cannot have the access to your account.
With Two-Factor authentication, whenever you sign into a new device like iPhone or Mac for the first time, you will have to not only enter the password but also authenticate it using the six-digit verification code which displayed automatically on your trusted device.
As for instance, if you sign in to your account on your iPad, you will be prompted to enter the six digit code which will appear on your iPhone, which you have trusted.
Two-Factor authentication is different from Two-Step Verification. For more information, check out our post on how to turn on Two-Step Verification.
How to Set Up Two-Factor Authentication for Apple ID from iPhone/iPad
Step #1. Launch Settings on your iOS device → Tap on iCloud.
Step #2. Tap on your Apple ID.
Step #3. Tap on Password & Security.
Step #4. Tap on Turn on Two-Factor Authentication.
Step #5. Tap on Continue and follow on-screen instructions.
How to Turn On Two-Factor Authentication for Apple ID on Mac
Step #1. On your, Mac click on the Apple menu → System Preferences.
Step #2. Click on iCloud.
Step #3. Click on Account Details.
Step #4. Up next click on Security → Finally, you have to click Turn on Two-factor Authentication.
Step #5. Click on Set Up.
Step #6. Answer your security questions and follow on-screen instructions.
Step #7. Enter your Mobile number and click on continue.
Step #8. Click on Done.
If ever wanted to disable it, follow the above-explained steps and turn it off in the end. Considering its huge significance, I recommend keeping it enabled with a view to protecting your account from falling prey to hackers.