In this quarterly threats report, they highlight three Key Topics: In the lead story, they analyze the recent WannaCry and Petya attacks, the perpetrators’ likely motives, and the business impact. The second Key Topic departs from their usual threat analysis stories. Because threat hunting is becoming increasingly important, in this story they offer detailed advice and recommendations for using certain types of indicators of compromise when hunting for threats. In the final Key Topic, they explore script-based malware—why it is used, how authors obfuscate scripts, how it propagates, and its growth in popularity.