Both the FBI and Cybersecurity and Infrastructure Security Agency are aware of the incident

Hackers compromised a Federal Bureau of Investigation email system on Saturday and sent tens of thousands of messages warning of a possible cyberattack, according to the agency and security specialists.

Fake emails appeared to come from a legitimate FBI email address ending in @ic.fbi.gov, the FBI said in a statement.

Although the hardware impacted by the incident "was taken offline quickly upon discovery of the issue," the FBI said, "This is an ongoing situation."... Read More: i24