@alyx Not foolish, just watch what they're up to for a while with wireshark, pretty soon be obvious if the firmware's been suborned and is calling home.

@alyx If anything on them is more arcane than that, well, Edward Snowden's approach, "always consider that the NSA has root" applies.

@alyx Hey, I've owned my refurb Nexus 6 for a year and had no problems yet. ...Well, no *hardware* problems. ^_^;