29 federal agencies were targeted with ransomware 321 times between June and early December of 2015. DHS said it had not received any reports from agencies that they had paid a ransom. The department said it did not track the total amount of losses, such as lost productivity, caused by these reported incidents. DHS’s response leaves many questions unanswered about the ransomware incidents, including how many computers were infected and whether Einstein, a federal system designed to detect and block cyberattacks targeting civilian agencies, successfully blocked any of the ransomware attacks.”]
Source: https://www.bankinfosecurity.com/blogs/how-reliable-einstein-to-stop-ransomware-p-2097