Whatsapp and Messenger recently added Llama 3.2 directly inside the app. If you text something and then delete it the AI will still have access to the full conversation (try asking for a summary of the chat), there is no way to "really" delete any message
I have tried it, deleted a few messages, and then asked Llama for a summary. It still remembered everything. Definitely eye-opening. If AI is in the chat, nothing is really gone. Think before you type.