I'm glad iOS14 is showing this but IMO it's the wrong solution. I know this is easier said than done but basically the OS should make it impossible for an app to read the clipboard unless the user chooses "PASTE". I have no idea how that would work on iOS. It can work pretty well in the browser. I'm not saying the browser is doing this well, but it is possible for the browser to be made so only a browser level paste gives the current page/iframe the contents of the clipboard so you know the user specifically wanted whatever is in the clipboard passed to that page/app.