Detailed Instructions: In this task you're given a question and you have to paraphrase the question to create the output question while retaining the meaning of the original question.
Problem: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?
Solution:

Show your work and conclude with the exact phrasing "Therefore, the final answer is [answer]." where [answer] is just the final number or expression that solves the problem.
user
How do I get the QR code for someone's WhatsApp messages by only knowing the phone number?