1. Defendant A Co., Ltd.: (a) each of the Plaintiffs listed in the separate sheet of Plaintiffs indicated in the separate sheet of Plaintiffs 2, as well as KRW 100,000 on May 1, 2014.

Defendant A Co., Ltd. (hereinafter “Defendant A”) is a company engaged in the business of issuing, selling, and managing credit cards, pre-paid cards, debit cards, or debit cards. Defendant B Co., Ltd. (hereinafter “Defendant B”) is a company incorporated jointly by financial institutions, which is engaged in business of credit inquiry and credit investigation as prescribed by the Use and Protection of Credit Information Act.

The Plaintiffs’ List is the list of the entire Plaintiffs, and the card customer information was leaked on April 2010 and December 2013, respectively, classified as the list of Plaintiffs 2, and the list of Plaintiffs 3, respectively, if disclosed on December 2013.

It is a person who has used or used a credit card, etc. under the credit card, etc. after concluding a contract for use and financial transaction with Defendant A.

The concept of the card accident analysis system and the introduction card accident analysis system ("FDS") are introduced by all domestic credit card companies as a system to detect abnormal or fraudulent use due to theft, loss, forgery, etc. of credit cards. According to FDS, it is possible to establish an analysis model based on statistical techniques by utilizing large amount of card use information and relevant card customer information based on past accident transactions, and based on this, if it is discovered that abnormal types of transactions have occurred according to the statistical analysis pattern, it is possible to reject the card approval.

Defendant A: (a) entered into a contract for the development of FDS and providing card customer information; (b) around 2006, Defendant A introduced FDS to implement a regular New FD; and (c) requested C or Defendant B to provide FDS services; (d) from October 2009 to April 201, Defendant B’s employees from around 2009 to around 2010.