1. The defendant stated in [Attachment 2] the plaintiffs' "whether to leak in 2010" in the "2010" target of outflow port (2010).

1. Basic facts

A. The introduction and operation of the card accident analysis system is running businesses such as the issuance, sale, and management of credit cards, pre-paid cards, and debit cards. In 2006, the Defendant introduced the card accident analysis system (FDS) and implemented improvement work to detect abnormal transactions or fraudulent use due to theft, loss, forgery, etc. of credit cards.

B. The Defendant requested C Co., Ltd. (hereinafter “C”) or D Co., Ltd. (hereinafter “D”) to provide FDS development services and customer information on the card.

(2) E is a C employee from October 2009 to April 2010, and D employee from September 2013 to December 2013, 2013, while the said company engaged in the business of developing and installing the FDS entrusted by the Defendant, and used the FDS development and installation business with the card customer information not converted from the Defendant.

C. Around April 2010, the Defendant provided C employees necessary for business with customer information on the card, but around April 2010, C employees did not receive equipment shipping certificates only for the computers brought into the Defendant’s office for the FDS business, and did not grasp the quantity of the imported hard disc. When the employees completed work at the Defendant’s office and completed the process, the Defendant instructed C employees not directly form the hard disc or supervise whether the hard disc was format.

(2) E does not thoroughly control and supervise the storage and release of card customer information on the hard disc carried by the Defendant, and around April 2010, after storing and using customer information in the hard disc for business purposes only 1,0230,000 won of the Defendant’s member’s member’s member’s member’s member’s member’s member’s member’s member’s member’s member’s member’s member’s member’s member’s member’s member’s member’s member’s member’s member’s member’s identity