1. All appeals filed by the plaintiffs are dismissed.

2. The costs of appeal are assessed against the Plaintiffs.

The purport of the claim and appeal is the purport of the appeal.

1. Basic facts

A. The defendant is a company that provides portal service based on search, community, etc. on the Internet, and provides online services, such as NATE, NAN, and cYWORD.

B. 1) In the event of hacking accident, there is a piracy in which the identity presumed to be residing in China is unknown (hereinafter “instant piracy”).

around 00:40 on July 21, 201, the Defendant Database (hereinafter “DB”)

) Using a wind commission’s reservation work on a AF’s AF’s computer, an employee belonging to the technical team, spread “Nate.ex”, a malicious program with a function to attempt reverse connection, which is a voluntary domain name created and offered by the instant sea line, and intrudes upon the Defendant’s information and communications network by linking the AF’s computer at a place where the location in China is unknown from July 26, 201 to July 27, 201, at a place where the location in China cannot be known, by means of a remote connection with the AF’s computer, and the DB server with which the NB server with which the NA’s member information is stored, the DB server with which the DB server with which the NA’s member information is stored, and the DB server with which the DB server with which the DB server and the DB server were stored with both the NA and the H.D (hereinafter each of the above DB server referred to as “instant server”).

A) In case of intrusion upon the pertinent database and transmitting personal information processed and stored in the database from AB server to AB server (www.eduts.co.k) where “the 211.112.36” was assigned to AB address (www.edut.k)

(2) Due to the instant hacking accident, 34,954,887 personal information was leaked among the members of the Nitpt or Packaging, and the leaked personal information includes the names, resident registration numbers, ID (ID), passwords, e-mail addresses, addresses, telephone numbers, etc. of the aforementioned members.

3. On July 28, 2011, the Defendant reported the instant hacking incident to the police and the Korea Communications Commission, and the instant hacking incident occurred to the NAE and its members.