The National Security Agency (NSA) is the main US agency for global monitoring, collection, decoding, translation and analysis of foreign intelligence data.
The NSA's parent organization is the US Department of Defense. Allegedly, based on the information released by former contractor Edward Snowden, the agency bugs electronic systems, protects the U.S. government communications and information systems, and collects and stores phone records of millions of American and international citizens. Snowden's data suggested that German Chancellor Angela Merkel, and her predecessor Gerhard Schröder, were targets of NSA surveillance. DW most recent content pertaining to the NSA and Edward Snowden appears below on this page.
We use ciphers to keep secrets secret. To crack ciphers, you need math, psychology and a slab of luck. It's not easy. Many great ciphers remain unsolved, as cryptologist Craig P. Bauer tells DW's Zulfikar Abbany.
Reality Winner is accused of leaking secret NSA information. Her cover may have been blown by invisible dots on a printed page. It's a little-known tracking system that could be standard on many commercial printers.
A leading Republican lawmaker has claimed the communications of Donald Trump's transition team - and maybe even the US president himself - were possibly captured in incidental surveillance against foreign targets.