South Korea’s National Intelligence Service has accused Pyongyang of attempting to hack into railway control systems and wiretap officials’ smartphones as tensions continue to mount on the peninsula. The National Intelligence Service (NIS) said in a press release on Tuesday that North Korean hackers penetrated the smartphones of dozens of senior South Korean officials, stealing text and voice messages, Yonhap news agency reported.

The intelligence service also claimed the North’s cyber-attacks targeted e-mails of South Korean railway workers in attempts to gain control over railroad control systems. The NIS said it detected hacking attempts by the North against employees of two regional railway networks this year, but did not elaborate on the specific objectives of the attacks. It also added that the hacking attempts against the railway workers had been interrupted and their e-mail accounts closed. READ MORE