An "email prankster" posing as White House chief of staff Reince Priebus fooled White House communications director Anthony Scaramucci into an email exchange last week, just as one was following the other out the door, CNN reported.
White House officials acknowledged the prankster had fooled not only Scaramucci but others still around President Donald Trump, and they told CNN they are taking the matter seriously.
"We take all cyber related issues very seriously and are looking into these incidents further," White House press secretary Sarah Huckabee Sanders told CNN.
CNN pointed out one exchange between the prankster, pretending to be Priebus, and Scaramucci.
"I had promised myself I would leave my hands mud free, but after reading your tweet today which stated how; 'soon we will learn who in the media who has class, and who hasn't', has pushed me to this," the prankster supposedly told Scaramucci as Priebus.
"That tweet was breathtakingly hypocritical, even for you. At no stage have you acted in a way that's even remotely classy, yet you believe that's the standard by which everyone should behave towards you? General Kelly will do a fine job. I'll even admit he will do a better job than me. But the way in which that transition has come about has been diabolical. And hurtful. I don't expect a reply," the fake email continued.
The real Scaramucci retorted, according to CNN: "You know what you did. We all do. Even today. But rest assured we were prepared. A Man would apologize."
The prankster, who tweets under the name @SINON REBORN, posted a continued digital exchange between him, as Priebus and Scaramucci.
The same prankster, who is based out of the United Kingdom, claimed he also tricked Homeland Security adviser Tom Bossert, Eric Trump and Jon Huntsman Jr., who has been nominated as the U.S. ambassador to Russia, The Washington Post said.