Federal Bureau of Investigation
Annual report of the FBI's Internet Crime Complaint Center. Records the number of complaints filed and the financial losses reported by scam type, including business email compromise, extortion and investment fraud. A reference volumetry for cybercrime targeting the United States.
Aggregation of complaints filed voluntarily by victims with the center. Losses are self-reported and understate actual harm, since many victims do not report; the figures are therefore a floor.
Use to quantify the scale and composition of cybercrime in the United States and track the rise of business email compromise. A free, citable institutional source.