For goodness sake, how much security do you need? Just keep the damn thing in your pocket, password protect the phone and the Sim card (and not 1111 or anything else easy to guess) and have the phone number of your operator in case the phone gets stolen.
Geoengineering on the sea floor near glaciers would form a new ice shelf to prevent melting
Alterations in capillary blood flow can be caused by body position change
Curiosity rover is in 'normal mode' but not transmitting scientific data back to base
NatWest outage comes a day after Barclays' IT systems shut out customers and staff