In what is one of the bigger news items of the week, the FBI has had one of their servers compromised and fake emails sent out from it. Since the emails were sent from one of the FBI’s servers they appeared legitimate in nature, as they actually came from their domain. The emails that were sent out were a false warning that the FBI had detected a chain attack and that the company’s virtual servers had been exfiltrated. It also laid blame for the attack at Vinny Troia’s feet, who is the founder of infosec firms Shadow Byte Cyber and Night Lion Security. It does not appear that this is the case. In total about 100,000 of these emails were able to be sent out before the campaign was stopped.
https://www.theregister.com/2021/11/15/fbi_fake_emails/