Do you know who are internet trolls and how they operate? Are you aware of the cyber risks faced every day? Do you know how to minimize your digital footprint and disappear from the web? Diaries of the Information War is a fictional novel which addresses these questions. It is an educational experiment to raise teenagers’ awareness of media literacy, data literacy and cyber-hygiene using so-called red teaming methods (a red team is a group that plays the role of an enemy).This story is about a teenager, Dan, who, step by step, is drawn into an internet troll factory and, against his will, participates in the information war, which results in tragedy. Each chapter describes how the situation deteriorates, how daily life changes – partly because of Dan’s actions. This book is for teenagers to help them avoid the mistakes of the main characters. All characters and events in this book are entirely fictional. Still, similar events described in the book are ongoing nowadays on the streets of many cities.