How Yahoo Fought Against PRISM in Secret — and Lost

Before allegedly becoming part of the secret National Security Agency surveillance program PRISM, Yahoo fought against it in court, in what was until now a secret challenge. The company eventually lost and had to comply, according to new reports.

This revelation comes from newly leaked documents, obtained by The New York Times, that shed some light on how Yahoo became part of PRISM, that allows the government to retrieve foreign users' data from tech giants, which reportedly include companies like Google, Facebook, Microsoft and Apple