For South Korea's tech titans, the need to secure intellectual property and new technology is driving their quest for overseas assets.

WSJ: Korea Is Primed for M&A Deals

For South Korea's tech companies, the need to secure intellectual property and new technology is driving a quest to acquire overseas assets.

WSJ: Korea Is Primed for M&A Deals

But it disabled cash machines and disrupted commerce in this tech-savvy, Internet-dependent country, renewing questions about South Korea's Internet security and vulnerability to hackers.

NPR: SKorea Ready For More Cyberattacks; Banks Recover