(CNN) – The FBI is addressing reports that unauthorized emails coming from a legitimate FBI email address were sent to thousands of organizations about a purported cyberthreat.
At least 100,000 of the emails have hit inboxes.
The agency said it is aware of the fake emails, and that they’re part of an “ongoing situation.”
One of the emails claimed to be a warning from the Department of Homeland Security that the recipient was the target of a “sophisticated” attack.