The Internet Crime Complaint Center (IC3) has issued an alert on extortion schemes that relate to recent high-profile data thefts. Fraudsters often use the news release of high-profile data breaches to scare victims into clicking on a link or paying a ransom.
Source: https://www.us-cert.gov/ncas/current-activity/2016/06/01/IC3-Warns-Extortion-Email-Schemes