Some of the documents turned over by Snowden provided precise details on how the U.S. tracks an Al Qaeda operative.
According to the Times, some officials argue that ISIS operatives reading the series of Snowden documents and news stories know what types of communication to avoid or how to make them more secure.
Snowden “went way beyond disclosing things that bore on privacy concerns,” said Inglis, who retired in January. “Having disclosed all of those methods, or at least some degree of those methods, it would be impossible to imagine that, as intelligent as they are in the use of technology, in the employment of communications for their own purposes, it’s impossible to imagine that they wouldn’t understand how they might be at risk to intelligence services around the world, not the least of which is the U.S.