This Mechanism poses a serious threat to your account. Because, if someone manages to steal OTP’s from your phone by installing a Malicious app, or using an SS7 Vulnerability or just by manually looking up the code from your Phone.
On enabling 2 Step verification, whenever you (or some hacker) setting up WhatsApp account, you have to enter:
- Mobile Number
- One-time Password
- 6-Digit Passcode (that you set while turning ON 2 step verification).