Ransomware is bad news not only because it can cause business-ending disruptions, as in the case of Abraham Lincoln College, but also because the actors behind ransomware attacks often exfiltrate data from compromised systems in addition to encrypting the data on said machines. Ransomware gangs tend to use this stolen data as an extra incentive

Source: Hot Hardware – Ransomware Gang Releases Security Tool To Check If Your Data’s Been Stolen, Gee Thanks