LONGSIDE ITS GOVERNMENT clients, Endace has many major corporate customers.

Endace’s sales lists include finance industry giants such as Morgan Stanley, Reuters, and Bank of America. Endace’s website says it provides financial companies with its monitoring technology to help “high-frequency traders to monitor, measure, and analyze critical network environments.”

In addition, Endace sells its equipment to some of the world’s largest telecommunications companies, among them AT&T, AOL, Verizon, Sprint, Cogent Communications, Telstra, Belgacom, Swisscom, Deutsche Telekom, Telena Italy, Vastech South Africa, and France Telecom.

Some of these companies may use the Endace equipment for checking the security of their networks. But a key strand of Endace’s business involves providing technology for telecommunications firms that enables law enforcement and intelligence agencies to intercept the messages and data of phone and internet users.

A company product strategy document from 2010 said that Endace had “seen early success” providing a Lawful Intercept product to the major U.S. telco and internet company Sprint Corporation.

All telcos and internet companies in the U.S., Europe, New Zealand, and a number of other countries are required by law to have “intercept capable” equipment on their networks. When police or spy agencies want private data about a customer (with or without a warrant, depending on the country), it can be extracted easily.

When installed on a network, Endace’s surveillance equipment can be used to perform targeted monitoring of individual people, but it can also be used to enable dragnet spying.

In one of the leaked Endace documents obtained by The Intercept — under a section titled “customer user stories” — the company describes a situation in which a government agency has obtained “the encryption keys for a well-known program.” An Endace surveillance “probe,” the document suggests, could help the government agency “unencrypt all packets sent by this program on a large network in the last 24 hours.”

Once the data has been decrypted, the agency will be able to “look for the text string ‘Domino’s Pizza,’” Endace joked, “as they have information suggesting this is the favorite pizza of international terrorists.”

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