The websites of South Korea's presidential office of Cheong Wa Dae and the Office for Government Policy Coordination came under attack on Tuesday morning, prompting the government to raise its cyber crisis alert level to "caution," its third stage.
The move followed an emergency meeting among officials from 10 related ministries, including the Ministry of Science, ICT and Future Planning.
Despite efforts to track down the culprit, the government has yet to confirm exactly who or what was behind the attack.
It all started at around 9:30 a.m., Korea time when a message saying "the Great Leader Kim Jong-un" was scrawled in Korean in red letters across the Cheong Wa Dae website.
At 10 a.m.,another message was posted alongside a picture of President Park Geun-hye reading "Hooray to Kim Jong-un, the president of unification We will continue our attacks until our demands are met "
The presidential office website has since been partially restored,after an emergency check-up.
Similar difficulties in accessing the websites of South Korean media outlets, including the Chosun Ilbo newspaper, and government offices were reported as well throughout the day.
Some cases turned out to be nothing more than traffic disorders, but government officials say that they are trying to figure out whether they were related with the hacking of the Cheong Wa Dae website.
Some experts are pointing the finger at North Korea, who they believe may have launched a retaliatory strike in response to the international hacking group Anonymous' plans to infiltrate 46 North Korean websites.
Eoh Jin-joo, Arirang News.