NEW: Two hackers broke into the computer of a hacker allegedly working for the North Korean spy group known as "Kimsuky."

The hackers then leaked a treasure trove of stolen data, exposing a North Korean spy operation against South Korean targets.

“Kimsuky, you’re not a hacker. You are driven by financial greed, to enrich your leaders, and to fulfill their political agenda. You steal from others and favour your own. You value yourself above the others: You are morally perverted,” the two wrote in their Phrack magazine article. “You hack for all the wrong reasons.”