Brzenchek offers a law enforcement practitioner's account of individuals and groups that pose cybersecurity threats in the US. Relying on the contributions of a former FBI agent, corporate compliance counsel, the Defense Department's transnational threats division, and a criminal's insider account, he addresses issues presented by gangs and transnational organized crime as well as cybersecurity threats and countering threat networks in 12 chapters. The text relies heavily on first-person accounts from those working in the field, including both former criminals and persons employed in law enforcement and threat assessment. The material on transnational organized crime focuses on the role of technology in posing threats, describing ways to counter these threats through surveillance and better information management. Interesting insights emerge from observations of several subjects working in this space, for example: "little is being done on a national level to mitigate risk to our national security." A unique thrust of the book is the argument that motivational interviewing (designed to help a person recognize available resources and strengths that have been previously overlooked) can be effective for preventing participation in transnational organized crime groups and networks. Recommended.