Most of the computers trying to access the websites were traced to China, the Ministry of Public Administration and Security said in a statement.
The Korean Culture and Information Service and the Justice Ministry were the targets of the so-called denial of service attacks on Friday, in which large numbers of computers try to connect to a site at the same time to overwhelm the server, the statement said.
The security ministry said it quickly blocked access by 274 computers with Internet Protocol addresses — the Web equivalent of a street address or phone number — mostly in China.
On Wednesday, similar attacks originating from China occurred on a site run by the security ministry.
The statement said it was investigating who was behind the attacks.
via: AP & weeklylink