Civics: On Surveillance.

Ryan Gallagher & Nicky Hager

The technology was designed by Endace, a little-known New Zealand company. And the important customer was the British electronic eavesdropping agency, Government Communications Headquarters, or GCHQ.

Dozens of internal documents and emails from Endace, obtained by The Intercept and reported in cooperation with Television New Zealand, reveal the firm’s key role helping governments across the world harvest vast amounts of information on people’s private emails, online chats, social media conversations, and internet browsing histories.

The leaked files, which were provided by a source through SecureDrop, show that Endace listed a Moroccan security agency implicated in torture as one of its customers. They also indicate that the company sold its surveillance gear to more than half a dozen other government agencies, including in the United States, Israel, Denmark, Australia, Canada, Spain, and India.

Some of Endace’s largest sales in recent years, however, were to the United Kingdom’s GCHQ, which purchased a variety of “data acquisition” systems and “probes” that it used to covertly monitor internet traffic.