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How to enable and use two-step verification on WhatsApp
Like many online services out there, WhatsApp provides two-step verification as an additional layer of security for your account.
An optional measure designed to help strengthen the security of your account, two-step verification requires that you verify your mobile phone number after installing WhatsApp's mobile app on a new device with a six-digit code that you created using this feature.
Here's how to enable two-step verification for your WhatsApp account.