Small- and medium-sized companies are now considered by cybercriminals to be attractive targets of opportunity because of the perception that they have minimal security. Many small companies are doing business online using new technologies they may not fully understand. Small businesses supply many larger organizations, resulting in possible connections to corporate networks that bring unforeseen risks.With these risks in mind, we present The Essential Guide to Cybersecurity for SMBs for security professionals tasked with protecting small businesses. Small businesses can reduce their risk and protect themselves by implementing some basic security practices and accepting cybersecurity as a strategic business initiative. The essays included in this book provide both security professionals and executives of small businesses with a blueprint of best practices that will help them protect themselves and their customers.