OOPS: In an embarrassing twist to a coordinated cyberattack on six major South Korean companies this week, investigators said Friday they wrongly identified a Chinese Internet Protocol address as the source.

ORIGINAL STATEMENT: South Korean investigators said Thursday that a malicious code that spread through the server of one of the hackers' targets, Nonghyup Bank, was traced to an IP address in China.

IN REALITY: But the state-run Korea Communications Commission said Friday that the IP address actually belonged to a computer at the bank. The IP address was used only for the company's internal network and happened to be identical to a public Chinese address.