Contestants had 25 minutes to social-engineer by phone information out of a specific company they were assigned to. Each contestant had been assigned a “target” company in advance of the contest, and were allowed to gather as much information as they could. Google, BP, McAfee, Symantec, Shell, Microsoft, Oracle, Cisco, Apple, and Walmart were targeted. Contest organizers won’t reveal which company’s employees gave up what information, but organizers say it worked better than expected.”]
Source: https://www.darkreading.com/attacks-breaches/social-engineers-successfully-gather-info