He lost track of time in the dark cell, his lawyer said.

CNN: Student forgotten in cell for 5 days will sue DEA

The mirrors of my house filled me with such a sense of gladness that a room without one struck me as a dark cell.

NEWYORKER: Miracle Polish

Dark Reading covered a talk at SOURCE on tracking GSM cell phones using a variety of public data, cell tower triangulation, and voicemail hacking techniques.

FORBES: Conference Roundup: Google Smacked, Clicks Jacked, Cisco Wifi Hacked, Cell Phones Tracked