First, spy satellite information is frequently classified at the top-secret level and handled within a special compartment called Talent-Keyhole. This means it is one of the most sensitive forms of intelligence gathered by the U.S.
Second, the North Koreans have assembled a massive cyberhacking army under an elite military spy program known as Bureau 121, which is increasingly aggressive in targeting systems for hacking, especially vulnerable private systems. The North Koreans, for instance, have been blamed by the U.S. for the hack of Sony movie studios.
Allowing sensitive U.S. intelligence about North Korea to seep into a more insecure private email server has upset the intelligence community because it threatens to expose its methods and assets for gathering intelligence on the secretive communist nation.
“While everyone talks about the U.S. being aware of the high threat of hacking and foreign spying, there was a certain nonchalance at Mrs. Clinton’s State Department in protecting sensitive data that alarms the intel community,” one source familiar with the email review told The Times. “We’re supposed to be making it harder, not easier, for our enemies to intercept us.”Let's hope her prospects for grabbing the brass ring have breathed their last.