Did the NSA target Microsoft too?
This e-mail from Britain's Government Communications Headquarters (GCHQ) to the National Security Agency suggests, but does not prove, that Microsoft may have been compromised by the same program used to access vast quantities of Google and Yahoo Internet traffic traveling between data centers.
CORRECTION: A previous version of this graphic incorrectly stated that this e-mail was sent by the NSA to Britain's GCHQ. It also incorrectly stated the name of Government Communications Headquarters.Microsoft, suspecting NSA spying, to ramp up efforts to encrypt its Internet traffic
GRAPHIC: Craig Timberg and Matt DeLong - The Washington Post. Published Nov. 26, 2013.