Republican campaign put beacons on lawn signs to track phones, company says

""You can pull a lot of information off of a device with Bluetooth," Jennifer Granick, surveillance and cybersecurity counsel at the ACLU Speech, Privacy, and Technology Project told Mashable over the phone. "There are a lot of identifiers on phones and ultimately you can aggregate and find out who people are and other details about their lives. The potential for privacy invasion is really big there.""