The conversation between human and AI assistant.
How does WhatsApp work, since if you change the SIM on your cell you will still get messages and notifications?
Can you explain how WhatsApp works? I'm wondering how I can still receive messages and notifications even if I change the SIM card in my phone.
WhatsApp works by using your phone number as your unique identifier. When you sign up for WhatsApp with your phone number, the app sends a verification code to that number. Once you’ve entered the code, WhatsApp links your account to your phone number. As long as you have access to that phone number, you can continue to use WhatsApp even if you switch SIM cards or devices.