S Korea probe says North behind cyber attack: report

A South Korean probe into a major cyber attack on its banks and broadcasters in March has determined North Korea's military intelligence agency was responsible, a report said on Wednesday.

A South Korean probe into a major cyber attack on its banks and broadcasters in March has determined North Korea's military intelligence agency was responsible, a report said on Wednesday.

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The official investigation into access records and the malicious codes used in the attack pointed to the North's military reconnaissance general bureau as the source, Yonhap quoted a senior government official as saying.

The attack completely shut down the networks of TV broadcasters KBS, MBC and YTN, and halted financial services and crippled operations at three banks - Shinhan, NongHyup and Jeju.

The attack employed malware that can wipe the contents of a computer's hard disk as well as drives connected to the infected computer.

It came days after North Korea accused South Korea and the United States of being behind a "persistent and intensive" hacking assault that took a number of its official websites offline for nearly two days.