Assuming the Signal protocol itself wasn't compromised, this illustrates why it is important to use expiring messages if your goal is privacy. Any device invol

Assuming the Signal protocol itself wasn't compromised, this illustrates why it is important to use expiring messages if your goal is privacy. Any device involved in the conversation could have been compromised. In that case the entire message history would be intact. Expiring messages don't completely solve the problem but it can drastically reduce the amount of information available.