Cass Marshall is a news writer focusing on gaming and culture coverage, taking a particular interest in the human stories of the wild world of online games. Epsilon can be downloaded and played now.

The same company, Epsilon, handles email services for all the brands mentioned above, and many more. Epsilon sends something like 40 billion emails each year on behalf of its 2,500 clients.

Epsilon announced a security breach that exposed millions of Americans. April 8, 2011— -- Spot Quiz: What does the word Epsilon mean to you? It is the fifth letter of the Greek alphabet. As I ...