cold fjord sends this news from Reuters:
"Edward Snowden used login credentials and passwords provided unwittingly by colleagues ... to access some of the classified material he leaked. ... A handful of agency employees who gave their login details to Snowden were identified, questioned and removed from their assignments. ... Snowden may have persuaded between 20 and 25 fellow workers at the NSA regional operations center in Hawaii to give him their logins and passwords by telling them they were needed for him to do his job as a computer systems administrator. ... People familiar with efforts to assess the damage to U.S. intelligence caused by Snowden's leaks have said assessments are proceeding slowly because Snowden succeeded in obscuring some electronic traces of how he accessed NSA records. ... The revelation that Snowden got access to some of the material he leaked by using colleagues' passwords surfaced as the U.S. Senate Intelligence Committee approved a bill intended in part to tighten security over U.S. intelligence data. One provision of the bill would earmark a classified sum of money ... to help fund efforts by intelligence agencies to install new software designed to spot and track attempts to access or download secret materials without proper authorization.'"