An Amazon employee tweeted details about an incident that many suggest could be a sign of a huge privacy bug in WhatsApp. Abby Fuller found some mysterious messages on WhatsApp, notably not associated with her contacts, immediately after she created a new account with the messaging app on her brand new phone using a new number for the very first time. WhatsApp has explicitly mentioned that it’s a “common practice for mobile providers to recycle numbers, you should expect that your former number will be reassigned” WhatsApp’s 45-day message deletion policy doesn’t seem to have a bug.
Source: https://thehackernews.com/2019/01/whatsapp-privacy-chats.html