“TechCrunch has found several popular iPhone apps, from hoteliers, travel sites, airlines, cell phone carriers, banks and financiers, that don’t ask or make it clear — if at all — that they know exactly how you’re using their apps,” TechCrunch reported. “Worse, even though these apps are meant to mask certain fields, some expose sensitive data.”
ie, Overlay screens lift your credit card password. What they do is have an invisible surface you don't see on top, pass through all your interaction - looking for passwords to banking and other sites a thief would be interested in.
RedHat Linux (and then other linux and freeBSD (by Ubuntu injected into freeBSD) use a screen for all logins which they say is "to provide alternate login methods").
DOC/IS modems (all COX and Verizon) contain government technology (doc is), funded by Congress who's never owned up to the public for the expenditure.
DOC/IS allows COX and local police to browse whatever you are browsing live - to see what your doing on the internet.