While I was travelling outside UK and I was force to use a second cell phone, thus in order to use my what’app application I had to re-authenticate with What’App server. Instead of switching back and forth sim cards which I thought it was a bit of hassle (feeling a bit lazy), I was curious to discover to test the What’App verification process and how robust it was. I tried to find a quick way to hack through the automatic validation of my phone number and the current device using it.
How the verification process works?
Since your mobile number is used as a unique identifier (eg. username) for using the service, it is most preferable to keep the same number for your friends and acquaintances to contact you.
It simply works by sending an sms message with a 6-digit temporary code on the user’s cellphone in the following form: “WhatsApp Code 123-456”
The process is automated which actually means the android application does not allow the user to enter the code manually but it detects it as it arrives in your inbox.