Your messages appear on all your devices, but this convenience raises privacy concerns.
Messaging used to be a simple, closed circuit between two people, but with multiple devices, this simplicity is lost.
Messaging walked a straight line once—one sender's words traveling directly to one receiver's eyes, a closed circuit with no eavesdroppers allowed.
Now, companies store all your data in a massive digital warehouse, accessible from all your devices, creating a potential security risk.
Users enjoy the seamless experience of messages syncing across devices, but this comes at the cost of a "towering stockpile of locked information".