Hackers stole blueprints, employee data, and threatened "destruction" if demands not met. The South Korean government issued a report today blaming North Korea for network intrusions that stole data from Korea Hydro and Nuclear Power (KHNP), the company that operates South Korea's 23 nuclear reactors. While the government report stated that only "non-critical" networks were affected, the attackers had demanded the shutdown of three reactors just after the intrusion. They also threatened "destruc