President Park Geun-hye pledged Wednesday to expand investment in cybersecurity, the latest in a series of efforts by South Korea to better deal with potential cyberattacks.

She also called for technology development in cybersecurity to make South Korea's cyberspace safer.

She made the comments in a video message to mark Information Protection Day. She did not elaborate on details of the proposed expansion of investment.

South Korea has been hit by a series of cyberattacks in recent years that officials and analysts blamed on North Korea.

South Korea said earlier this year that North Korea is believed to be linked to a series of data leaks involving South Korea's nuclear power plants in December.

North Korea has a track record of waging cyberattacks on South Korea and the United States. (Yonhap)