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Circles is the most popular social network in the world: vast, ubiquitous, and constantly evolving. Days before expanding into China, Circles suffers a devastating cyberattack-and a key executive is brutally murdered.
As he fights to save the company he helped build, top engineer Sergio Mansour uncovers evidence of a massive conspiracy that turns the power of Circles against its users. But as Sergio investigates, someone is watching his every move-someone ruthless enough to brand him a crimi...