Infidelity has always posed one of the worst threats to relationships. But today, our digital prowess has led to a disturbing and as yet little understood new form of infidelity: cyber infidelity. In this book, renowned sexologist Dr Eve takes the first in-depth look at this new form of deception: people who deliberately communicate in secret through texts, chats, e-mails and dating sites, even though they are in a close real-life relationship. Based on her groundbreaking research using the database of the international dating site ashleymadison.com, Dr Eve exposes this new seduction and the sometimes shocking impact of anonymous and affordable connection on modern-day marriages and relationships.