Preventing whatsapp from getting compromised

Open WhatsApp on your phone and go to Settings -> Account -> Two-Step Verification and tap on Enable. This will allow you to create a six-digit PIN which you will have to punch in any time you want to set up WhatsApp on any phone. This is separate from the verification code that you may get via SMS at the time of logging into WhatsApp for the first time on a phone. After setting up this PIN, you can also optionally enter an email address which will allow WhatsApp to send you a link to reset the two-step verification in case you forget the six-digit PIN.

But why do you need this? All it takes is a hacker to get control of one WhatsApp account to be able to replicate the same hacking technique on pretty much everyone else in your WhatsApp contacts list and groups. The way these work is that a hacker will try to authenticate the WhatsApp accounts of other users on a device that he or she may have, and for that, the first time verification PIN will be sent by SMS—and the hacker will send a harmless looking message from the person whose account has been hacked to everyone in the groups to forward the message they receive. The moment you do, believing it is your friend who is messaging (who isn’t—actually, the friend doesn’t even know this is happening) and you may forward that message anyway. Armed with the first layer authentication PIN, a hacker is then able to take charge of other WhatsApp accounts.

Now, at this stage, if you have the two-step verification enabled, a hacker will be unable to actually set up your WhatsApp account, because they will not have this six-digit pin which you created as a second line of defense.
A user whose account has been hacked will only know when they actually open WhatsApp and they receive a pop-up saying that their WhatsApp account has shifted to another device and they need to re-verify here to continue. And that can get messy.

Also do keep in mind that if you get an email from WhatsApp saying that you have requested to disable the two-step verification, but you didn’t do it, do not click on that link. It is someone trying to hack into your account.

Do remember that this PIN is important. WhatsApp says that if you have two-step verification enabled, your number will not be permitted to reverify on WhatsApp within 7 days of last using WhatsApp without this PIN in case you don’t remember it anymore. That is why it is important to provide an email address to disable two-step verification. After these 7 days, you can again reverify your WhatsApp account without the two-step verification PIN, but you'll lose all pending messages which will have been deleted. more  

View all 7 comments Below 7 comments
Good suggestion, but lots of checks will require more passwords to be remembered. more  
i do not know how to do it ? if you really wish to help do so in the real world of life show how it is to be done ? stop assuming all online 24X7 ? how do we verify the person / people who are claiming to verify us ? plus when no internet connection or battery goes down or just hung up ? what they call in computer language ? Guess hackers are from these high ups who knows ? plus space issues in smart phone constant problem - should one buy a 1024 or above gb phone then - costing more than affordability and half day goes in delete this - then how does one feed himself ? more  
thanks for information more  
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