The study highlights growing concerns about social networks and how data trails can be mined for sensitive information, even when people attempt to keep information about themselves private.

CNN: Facebook reveals secrets you haven't shared

In addition to the 49% of schools which said they allowed the data to be taken home by staff, a further 4% said they left sensitive and unprotected data at unsecured locations in the school.

BBC: RELATED BBC SITES

"Gemalto has been an early mover in developing its software and servicing capabilities to remotely manage sensitive data for different security implementations on connected devices, and we are excited to be part of this new venture that will pave the way for accelerating the adoption of a Trusted Execution Environment utilizing ARM TrustZone technology, " said Olivier Piou, CEO of Gemalto.

ENGADGET: ARM seeks better security for connected devices, teams up with Gemalto and Giesecke & Devrient