Yes you will. If you use Google Drive Sync on Android or iCloud sync on iPhone and you change phones but you enter the same number you had it will automatically show you your last synced messages. Do ensure that you sync your messages before you open it up on another device
then the best thing to do is turn off all back ups. I would then delete all your messages and "backup" an empty whatsapp.On the contrary , I DO NOT want this to happen. What can I do to make sure that
when I login the whatsapp account on another phone the history cannot be retrived?
Can I delete a whatsapp account and its history permanently??