The name of the whistleblower who leaked classified information from the National Security Agency (NSA) in 2013 is Edward Snowden. He was an American computer intelligence consultant who worked for the NSA and leaked a large number of classified documents to the press, revealing the extent of the NSA's global surveillance programs. Snowden's disclosure created a significant controversy around the world, with some considering him a hero and others a traitor. Snowden is currently living in Russia under political asylum.