If your credit card or banking account has ever been compromised by cybercrime, you know that cybercrime is no laughing matter. What exactly is cybercrime? Who are the victims? The perpetrators? Most of us never report cybercrime to local law enforcement authorities. Is that a mistake? What is the F.B.I.'s role in combating cybercrime? How is A.I. making matters worse? And how can we protect ourselves from multiple cyber threats? Jin Lee, Assistant Professor of Criminology at George Mason University and the author of multiple articles on cybercrime, helps us to understand a complex but important subject.