"When Ben discovers that his Facebook page has been changed, he is worried. Then someone sends emails from his account! Have his personal and work files been hacked? This book looks at the topics of computer science and information and communications technology to explain how Ben's laptop and his company's network have been compromised, and how the systems administrator, network manager, and police investigators can track down the person carrying out the cyber attack."
When her little sister's special laptop goes missing, ten-year-old Violet becomes obsessed with finding the thief. She puts her classmates on super-secret watch and spies on them after school. But as her list of suspects dwindles, Violet becomes desperate. Will her wild accusations cost her a friend?
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