"Teenage hacker Emika Chen embarks on a mission to unravel a sinister plot and is forced to join forces with a shadowy organization known as the Blackcoats"--

"Former chief of the British Secret Intelligence Service Adrian Weston is awoken in the middle of the night by a phone call from the Prime Minister. Her news is shocking: the Pentagon, the NSA, and the CIA have been hacked simultaneously, their seemingly impenetrable firewalls breached by an unknown enemy known only as 'The Fox.' Even more surprisingly, the culprit is revealed to be a young British teenager, Luke Jennings. He has no agenda, no secrets,...

When hackers target locations all over London, Kat leads the City Spies in testing security for the British Museum where a secret message leads them to Egypt and the ancient City of the Dead.

Four teenagers hunt a dangerous criminal online.

"When a sadistic hacker, code-named Phate, sets his sights on Silicon Valley, his victims never know what hit them. He infiltrates their computers, invades their lives, and --with chilling precision--lures them to their deaths."--from dust cover.yy

Kidd, "an artist, computer whiz, and professional criminal," investigates the death of a colleague he thinks was killed for knowing too much.--Jacket.

When beautiful, smart Nicole, disfigured by acid thrown in her face, and computer hacker Jay meet in the school psychologist's office, they become friends and Jay resolves to find her attacker.

When a Chinese assassin shows up at Jim Pierce's lab looking for his daughter, he knows she's uncovered some serious secrets: a malevolent, artificial life form created by military scientists that threatens to destroy humanity.

"One by one, students' phones are hacked at Alexandria Prep. What was thought to be a joke escalates quickly as private information and secrets are revealed, leaving everyone exposed, and Anna Soler on the the hunt for the hacker"--

When teen hacker and foster child Wick Tate finds a dead classmate's diary on her front step, with a note reading "Find me," she sets off on a perverse game of hide-and-seek to catch the killer.