NSA reportedly stole or doctored
encryption keys of internet firms
'Because strong encryption can be so effective, classified NSA documents make clear, the agency’s success depends on working with internet companies — by getting their voluntary collaboration, forcing their cooperation with court orders or surreptitiously stealing their encryption keys or altering their software or hardware.' -- ProPublica

http://www.propublica.org/article/the-nsas-secret-campaign-to-crack-undermine-internet-encryption