Das kanadische CBC News veröffentlicht ein neues Snowden-Dokument:
Canada’s electronic spy agency sifts through millions of videos and documents downloaded online every day by people around the world, as part of a sweeping bid to find extremist plots and suspects, CBC News has learned.
Under Levitation, analysts with the electronic eavesdropping service can access information on about 10 to 15 million uploads and downloads of files from free websites each day, the document says.
„Every single thing that you do — in this case uploading/downloading files to these sites — that act is being archived, collected and analyzed,“ says Ron Deibert, director of the University of Toronto-based internet security think-tank Citizen Lab, who reviewed the document.
Analysts find 350 „interesting download events“ each month, less than 0.0001 per cent of the total collected traffic, according to the top-secret presentation.
Once a suspicious file-downloader is identified, analysts can plug that IP address into Mutant Broth, a database run by the British electronic spy agency Government Communications Headquarters (GCHQ), to see five hours of that computer’s online traffic before and after the download occurred.
That can sometimes lead them to a Facebook profile page and to a string of Google and other cookies used to track online users‘ activities for advertising purposes. This can help identify an individual.
Und nochmal bei The Intercept: Canada Casts Global Surveillance Dragnet Over File Downloads.