Subject
2 entries
Surveillance
Bookmarks
Facebook Shadow Profiles
Aguiar, Peukert, Schaefer, and Ullrich (CESifo, 2022) quantify Facebook's cross-web tracking via its engagement buttons, finding that 52% of websites visited by US users employ Facebook's tracking technology. Facebook builds shadow profiles even for non-users — the scope of cross-platform surveillance is much larger than most users assume.
How the NSA Analyzes Call Metadata
GigaOm's technical explanation of how the NSA processes bulk call metadata — published in June 2013 immediately after the Snowden revelations. The article explains the graph analysis techniques that make even metadata (not call content) a powerful surveillance tool.
