1. The Defendants jointly share KRW 100,000 for each of the Plaintiffs and for each of them, from October 28, 2014 to October 6, 2016.

1. Basic facts

A. Status 1 of the parties, etc.

Defendant A Co., Ltd. (hereinafter “Defendant A”) is a company engaged in the business of issuing, selling, and managing credit cards, pre-paid cards, or pre-paid cards.

(2) The Plaintiffs are those persons who concluded a contract with Defendant National Card and a financial transaction with a credit card, etc. and used or used the credit card, etc., as well as companies that jointly invested and established by financial institutions.

B. 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 transactions or fraudulent use due to the theft, loss, forgery, etc. of credit cards.

According to the FDS, it is necessary to establish an analysis model in accordance with statistical techniques using large amount of card use information and customer information based on past accident transactions, and to take measures such as refusing to grant credit card approval when it is discovered that abnormal types of transactions have occurred according to statistical analysis pattern when credit cards are used.

C. Defendant’s national card leakage 1) conclusion of the FDS development service contract and provision of information to card customers) Defendant’s national card was raised after introduction of FDS around 2008, and Defendant’s national card entered into a contract with Defendant A on January 30, 2013, setting the contract amount of KRW 227,419,50, and within seven months from the date of the delivery due date.

B. The development human resources of Defendant A, including the project manager B, are put in the Defendant’s national card from February 2013 to August 2013 and FDS development work.