How a social engineer hacked Wal-Mart

A Wal-Mart store manager in a small military town in Canada got an urgent phone call last month from “Gary Darnell” in the home office in Bentonville, Ark.

Darnell told the manager Wal-Mart had a multi-million-dollar opportunity to win a major government contract, and that he was assigned to visit the handful of Wal-Mart stores picked as likely pilot spots. First, he needed to get a complete picture of the store’s operations.