Assured Destruction

You can learn a lot about someone looking through their hard drive ...
Sixteen-year-old Jan Rose knows that nothing is ever truly deleted. At least, not from the hard drives she scours to create the online identities she calls the Shadownet.
Hobby? Art form? Sad, pathetic plea to garner friendship, even virtually? Sure, Jan is guilty on all counts. Maybe she's even addicted to it. It's an exploration. Everyone has something to hide. The Shadownet's hard drives are Jan's secrets. They're stolen from her family's computer recycling business Assured Destruction. If the police found out, Jan's family would lose its livelihood.
When the real people behind Shadownet's hard drives endure vicious cyber attacks, Jan realizes she is responsible. She doesn't know who is targeting these people or why, but as her life collapses Jan must use all her tech savvy to bring the perpetrators to justice before she becomes the next victim.
"Stewart seamlessly incorporates the fast-paced world of social media into a unique writing style that perfectly captures the world of a modern teen..."Many teenage girl readers will find unconventional, strong Janus to be an intriguing role model, but as a clever, talented and often slightly dark hacker, she transcends gender stereotypes and will find fans among teen boy readers as well.
"A fun, fast-paced thriller guaranteed to distract teens from Facebook for at least a little while." --Kirkus Reviews