Did North Korea really hack Sony? Cybersecurity pros at odds

Was North Korea involved in the Sony Pictures Entertainment hack? On Wednesday, several news reports quoted unnamed US officials saying yes. But many cybersecurity experts remain skeptical. On Thursday, the White House refused to point the finger at North Korea, instead saying a "sophisticated actor" was behind the hack. Passcode asked experts throughout the industry whether they believe North Korea is responsible for the breach. Here's what they had to say: