CrowdStrike says hackers are threatening to leak sensitive information about adversaries

CrowdStrike, a leading U.S. cybersecurity company, reported a breach where a hacker leaked internal data on hacker groups it monitors and threatened to reveal more sensitive information. The leaked data, which includes details on 244 hacker groups, largely mirrors CrowdStrike’s publicly available information but also allegedly contains “Indicators of Compromise” used by cybersecurity experts. The hacker, identified as USDoD, posted the data on BreachForums, a major hacker forum. This leak follows shortly after CrowdStrike admitted responsibility for a massive computer crash caused by a software update error, indicating no direct link between the two incidents. CrowdStrike stated that the stolen data was likely taken in June.

Opens on nbcnews.com