WhatsApp Number Change: How to change WhatsApp phone number? a very good question! If you get a new mobile phone number and then wants to activate WhatsApp, it can happen in exceptional cases that you seem to get WhatsApp messages from completely strangers. It happened to WhatsApp user “Thomas Grothe” from Berlin. After he started using his new number in WhatsApp messenger, he started receiving conversations who were ment to be for a certain “Karin Gehrmann”. Karen had the same mobile number terminated a few weeks earlier. She had cleared and remove the WhatsApp app from her old phone, but that was not enough. the also did a factory reset of her device. These are thing you can do without having to pay for it. Nevertheless, something had gone wrong because Thomas, the new user of karin’s old phone number, started receiving messages from people he didn’t know.
According to a security expert, it is becoming more common that WhatsApp messages are delivered to the wrong phone number. Actually, that is technically impossible, because WhatsApp has specific measures for this type of situation. But that is not convenient. Once WhatsApp is 45 days not used (so become inactive) and then being re-installed on another device, all data will be erased, which is linked to the appropriate telephone number, such as profile pictures and chats. That information is also available on the support page of WhatsApp. From a privacy perspective this is off-course very good.
To help and avoid confusion with recycled phone numbers, we monitor inactive accounts. If an account is not used for 45 days and then becomes active again, we see this as a sign that a number is recycled. We will than remove the old account information associated with the phone, such as profile pictures and status. In fact, this measure would have to protect. But in the case of Thomas and Karin, this has not happened: Karin’s number was removed on August 9 2014 and Thomas got the same number assigned on November 16 2014. There was thus a period of 99 days between the data and Karin was already gone. How do you safely change your phone number? If you take a few precautions to prevent the above scenario is good. Recently we have written about WhatsApp Spam and making a WhatsApp Backup. This information is useful to read before you change number.