Just one click could compromise the security and contents of a computer. With the help of this book, readers will learn how to avoid downloads that could harm their computer. Young Internet users will learn about viruses and other threats that come with downloading dangerous material online. Practical solutions to relatable problems are offered and will encourage readers to be responsible online. Full-color photographs help readers understand important concepts. As a key resource for Internet safety, this book is sure to be a popular addition to any library or classroom.