WhatsApp recently added two-step verification for their 1.2 billion active users. It will protect user account like a safe guard from hacker.
WhatsApp verification differ from others apps or website verification like Facebook, Google or yahoo.
How it works:
To enable two-step verification, open “WhatsApp > Settings > Account > Two-step verification > Enable”.
WhatsApp requires user to create your own 6 digit passcode. When user have two-step verification enabled, any attempt to verify user phone number on WhatsApp must be processed with this 6 digit passcode that user created before. WhatsApp will periodically ask user to enter user passcode to make user remember. It may be an annoying feature for users. There is no option to disable this without disabling the two-step verification feature.
During the process to enable two-step verification, WhatsApp will also ask user for an email address (optional). This email will be used for the purpose of disabling two-step verification. WhatsApp send user a link via email to disable two-step verification. WhatsApp do not verify user email address to confirm its accuracy. WhatsApp require accurate email address so that user is not locked out of their account if they forget their passcode.
If user get link to their email without request to disable two-step verification, user should not click the link from their email.
If user has two-step verification enabled, user number will not be permitted to verify again on WhatsApp within 7 days of last using WhatsApp without your passcode. In case if user forgot their own passcode they can’t verify again within 7 days, but after 7 days if user want to verify again their phone number without passcode they will lost all prending messages. Same way if user wants to verify again their number after 30 days without passcode, their account will be deleted and a new account will be created on WhatsApp.
WhatsApp uses a unique concept of verification sometimes it may annoying for people who are not so techi/advance to use new process of verification. Avoiding two-step verification will be a better decision for people whose messages is not that much important to protect from hacker but important to keep message on messenger app although they are not using app regularly and/or who get this feature hard to handle.