As part of its Tech Tuesday series, the FBI's Portland, Oregon office has published an article on building a digital defense against cryptocurrency scams. This article was prompted by the FBI’s Internet Crime Complaint Center having received numerous tips recently from people who received threatening messages demanding digital currency. The targeted victim receives an email from a person or group alleging that they committed some crime that involved the theft of virtual funds from the scammer. The threat actor makes a series of threats demanding the victim pay him back. The scammer provides a cryptocurrency address for the victim to use. The articles further describes the activity and lists a series of tips to protect oneself. Read the article at the FBI.