Is it normal that Whatsapp keep asking for your two step verification PIN in a certain frequency? Like once a week for example. I noticed this behavior on my phone. Is something to worry about or it's normal?
As per WhatsApp FAQ I would like to believe this is normal, for security reasons and to prevent one from forgetting their PIN
Two-step verification is an optional feature that adds more security to your account. When you have two-step verification enabled, any attempt to verify your phone number on WhatsApp must be accompanied by the six-digit PIN that you created using this feature.
To help you remember your PIN, WhatsApp will periodically ask you to enter your PIN. There is no option to disable this without disabling the two-step verification feature.