Snowden impersonated NSA officials, sources say

Edward Snowden accessed some secret national security documents by assuming the electronic identities of top NSA officials, said intelligence sources.

“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.” …

The NSA has already identified several instances where Snowden borrowed someone else’s user profile to access documents, said the official. …

As a system administrator, according to intelligence officials, Snowden had the ability to create and modify user profiles for employees and contractors. He also had the ability to access NSAnet using those user profiles, meaning he could impersonate other users in order to access files. He borrowed the identities of users with higher level security clearances to grab sensitive documents.