The conversation between human and AI assistant.
Can someone access your WhatsApp messages on your old phone, even if they have a different number? Can they also see current WhatsApp messages being received or sent?
What if they try to log in to my account on a different phone with their own number?
They would need to verify the account with the verification code sent to your old phone number in order to access your WhatsApp messages on a different phone. If they can't access your old phone number, they won't be able to verify the account and therefore won't be able to access your messages.