Themes: Cyber Crime, Hacking, Nonfiction, Tween. Look out! Your computer data is not safe. There are hackers who will steal it. Sell it. Or destroy it. The hackers are getting smarter. They leave little trace as to their identities. And there are dangerous consequences for individuals, corporations, and governments. Red Rhino Books Nonfiction is the first Hi-Lo children's nonfiction series at a first-grade reading level for students in grades 4–7. Visually appealing fullcolor photographs and illustrations—along with fun fact boxes—keep these books flowing. Also includes prereading comprehension questions along with a 20-word glossary for further reading support.