![Citizenfour (2014) " The oscar award winning film that uncovers the secret and illegal practices of the U.S. National Security Agency's mass surveillance programme using classified documents revealed by NSA whistle-blower Edward Citizenfour (2014) " The oscar award winning film that uncovers the secret and illegal practices of the U.S. National Security Agency's mass surveillance programme using classified documents revealed by NSA whistle-blower Edward](https://external-preview.redd.it/EY2z8_74jNIFw5hkOMk_Ilr3oCWgrR5F6KcTztdtnxU.jpg?auto=webp&s=8b89dabffc1692543a801394cf098997020951bc)
Citizenfour (2014) " The oscar award winning film that uncovers the secret and illegal practices of the U.S. National Security Agency's mass surveillance programme using classified documents revealed by NSA whistle-blower Edward
![Characters as Source: Encryption, OPSEC, and Source Protection as Filmmakers' Tools - ENCODE: Engaging Conflicts in a Digital Era Characters as Source: Encryption, OPSEC, and Source Protection as Filmmakers' Tools - ENCODE: Engaging Conflicts in a Digital Era](http://digitalmedia.wdfiles.com/local--files/the-making-of-citizenfour:encryption-opsec-and-source-protec/citizenfour.jpg)
Characters as Source: Encryption, OPSEC, and Source Protection as Filmmakers' Tools - ENCODE: Engaging Conflicts in a Digital Era
![SentinelOne on Twitter: "❄️ @citizenfour—A polarizing figure? Yes. Landmark events in the history of information security and how we view surveillance?… Also Yes. Directed by Laura Poitras: https://t.co/gEFyrGujIt https://t.co/5A4S1FbCFk" / Twitter SentinelOne on Twitter: "❄️ @citizenfour—A polarizing figure? Yes. Landmark events in the history of information security and how we view surveillance?… Also Yes. Directed by Laura Poitras: https://t.co/gEFyrGujIt https://t.co/5A4S1FbCFk" / Twitter](https://pbs.twimg.com/tweet_video_thumb/Fon9NgmaUAAWr4Y.jpg)