1. The Defendants jointly do so to the rest of the Plaintiffs except the Plaintiff C, each of which is KRW 100,000, and Defendant A.

1. Basic facts

A. The status of the parties 1) Defendant B Co., Ltd. (hereinafter “Defendant B”)

(1) The Credit Information Use and Protection Act (hereinafter referred to as the “Credit Information Act”) shall apply to a company incorporated jointly by a financial institution.

Defendant A Co., Ltd. (hereinafter “Defendant A”) is a company engaged in the business of credit inquiry and credit investigation as set forth in the section.

(2) The Plaintiffs are those persons who have used or used a credit card, etc. upon entering into a financial transaction contract with Defendant A and obtain credit cards, etc.

B. The concept of the card accident analysis system and the introduction card accident analysis system (hereinafter “FDS”) are being introduced by all domestic card companies as a system to detect abnormal transactions or fraudulent use due to the theft, loss, forgery, etc. of credit cards.

According to the FDS, a large amount of card use information and customer information based on the past accident transactions created an analysis model in accordance with statistical techniques, based on this, and based on the results, the card company will refuse to approve the card if it is discovered for any abnormal transaction due to an accident pattern analyzed at the time of using the credit card.

C. Around 2009, Defendant A entered into a development service agreement with Defendant A Card’s 1 FDS development service agreement, and Defendant A entered into a development service agreement with Defendant B to indicate the FDS that was newly established with Defendant B, since the introduction of FDS through Defendant B around May 201.

Defendant A provided card customers information not converted to Defendant B on the ground that it is necessary for development work during the period of the FDS development project, and Defendant B project general managers D, etc. from May 2012 to December 2012.