NSA Officials Are Admitting That They May Never Know Extent Of Snowden’s Leaks

Officials Say U.S. May Never Know Extent of Snowden’s Leaks -- New York Times

WASHINGTON — American intelligence and law enforcement investigators have concluded that they may never know the entirety of what the former National Security Agency contractor Edward J. Snowden extracted from classified government computers before leaving the United States, according to senior government officials.

Investigators remain in the dark about the extent of the data breach partly because the N.S.A. facility in Hawaii where Mr. Snowden worked — unlike other N.S.A. facilities — was not equipped with up-to-date software that allows the spy agency to monitor which corners of its vast computer landscape its employees are navigating at any given time.

Six months since the investigation began, officials said Mr. Snowden had further covered his tracks by logging into classified systems using the passwords of other security agency employees, as well as by hacking firewalls installed to limit access to certain parts of the system.

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Update: EXCLUSIVE - After 'cataclysmic' Snowden affair, NSA faces winds of change -- Reuters

My Comment: By admitting that they may never know the entirety of what Edward Snowden was able to obtain means .... to put it bluntly .... that they must now work on the assumption that all of their programs have been compromised.