2/21/2014

Facebook's $19 billion offer gave WhatsApp's founders plenty of good reasons to sell their company -- but ultimately, it was Facebook's reach and technical expertise that appealed to Jan Koum and Brian Acton, insiders say. "They're both mavericks, they're both independent thinkers," says Jim Goetz of Sequoia Capital. "Like many of the best entrepreneurs we've been affiliated with, they were driven and focused on building something for themselves."

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