“Every day, they are learning how brilliant [Snowden] was,” said a former U.S. official with knowledge of the case. “This is why you don’t hire brilliant people for jobs like this. You hire smart people. Brilliant people get you in trouble.”
Snowden was a Honolulu-based employee of Booz Allen Hamilton, an NSA contractor. His job gave him system administrator privileges on the NSA’s intranet, NSAnet. He reportedly used his privileges to download 20,000 documents.
The NSA still doesn’t know exactly what Snowden took. But its forensic investigation has included trying to figure out which higher level officials Snowden impersonated online to access the most sensitive documents.
The NSA has as many as 40,000 employees. According to one intelligence official, the NSA is restricting its research to a much smaller group of individuals with access to sensitive documents. Investigators are looking for discrepancies between the real world actions of an NSA employee and the online activities linked to that person’s computer user profile. For example, if an employee was on vacation while the on-line version of the employee was downloading a classified document, it might indicate that someone assumed the employee’s identity.
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