Piece of advise to smartphone userd
The moment you do that they can record your conversation.
Recently a friends conversation with a doctor was recorded and an ad was pushed to buy the medication the doctor prescribed.
Scary!! So just be sure to go into settings and turn microphone access OFF. more
Yes, there exists end-to-end encryption. It's between phone to phone.
But there's no encryption between speaker's mouth and phone.
Do you suspect rogue code embedded in installed apps may be relaying keywords to unauthorised marketing services? I understand that this may be more prevalent on Android as Android App Store security terms aren't as strict as Apple Store.
Regards,
Gaurav more