Social engineer hacks Wal-Mart from Defcon

In a contest at the hacker conference Defcon, security specialist Shane MacDougall successfully penetrated Wal-Mart. "Social engineering is the biggest threat to the enterprise, without a doubt," MacDougall said after his call. "I see all these [chief security officers] that spend all this money on firewalls and stuff, and they spend zero dollars on awareness." (via @kevinmitnick)