Mikhail Kontarsky's computer

 is a computer that appears in Deus Ex: The Fall. It is located in the decoy room in Hotel Novoe Rostov, Moscow, and contains just one email.

You're taking a big risk
FROM: Juggernaut

TO: Kontarsky

You may think you know what you're doing, Mr. Kontarsky, but nothing can protect you while you stay in Moscow. There are forces at work here that transcend government and military; they will find you, and they will kill you. Get out while you still live.