The idea is that these snapshots can help users, with the assistance of Windows', retrace their steps or recover forgotten actions - say, the name of that app you briefly opened or the form you accidentally closed.But for privacy-first platforms like Signal, that kind of constant surveillance raises major red flags. And since Microsoft hasn't offered any tools for developers to opt their apps out of Recall's screenshot collection, Signal has taken matters into its own hands - creatively.Instead of waiting for Microsoft to offer a proper opt-out, Signal is exploiting a Windows feature originally built to serve Hollywood:.