Yaiza Rubio, one of the major world experts on cybersecurity, is the main character in this book designed to teach kids how to use the internet safely. In the book, Yaiza is the new cybersecurity teacher at the Tarmontana School where Sara, Maria, Álex and Diego are students. In each chapter the four young friends find themselves facing a different digital threat, and they discover how to avoid the risk due the advice and recommendations of their new teacher. In this book, kids will learn: how to protect their digital identities; how not to fall for scams or be taken in by false friends; and to surf the web safely. Here’s to a safer internet for all!