1. Defendant A and Q Co., Ltd.: (a) from July 13, 2012 to July 13, 2012, and from July 1, 2012 to Plaintiff D.

1. Basic facts

A. (1) The plaintiffs' status as a party (1) An industrial trade union consisting of journalists engaged in the press industry, and the headquarters of the plaintiffs' National Press Workers' Union A is a trade union consisting of workers employed in defendant A (hereinafter "Defendant A"), which is the headquarters of the National Press Workers' Union affiliated with the headquarters of the National Press Workers' Union, plaintiffs B, C, D, and E, and plaintiffs F are the former executive officers of the headquarters of each National Press Workers' Union, Gap's professional producers (PD), Eul, H, and I, respectively, the current executive officers of the headquarters of the National Press Workers' Union A, the teachers of the plaintiff J and the representative of the R Workers' Union, and the supervision of the plaintiff K's multi-ment document management.

(2) Defendant A worked as the broadcasting company, Defendant L, M, N,O, P, and Q as the former and present officers and employees of each of the former and incumbent executives and employees of each of the instant A, M, the vice president (current representative director), N, the head of the management support headquarters, the director of the planning and public relations headquarters, P, and Q as the head of each information system team.

B. On June 201, Defendant A established an implementation plan to strengthen the company’s information security system by ordering the Information Content Office (Chief Q) to select a security product with excellent hacking blocking function and to strengthen the company’s information security system, as a result of internal audit conducted by itself on or around June 2011, and the accident of leakage of inside information occurred several times.

(2) Accordingly, Defendant Q has formulated an implementation plan to strengthen the information security system, reported it to the executives and employees, including Defendant M, and obtained approval, and then examined whether to select various hacking prevention programs, and then determined to regard the “Trojan” program produced in Trojat Cririe Co., Ltd. as a test using the program, and on May 21, 2012, the said program on the computer of the staff in charge of IT affairs in charge of information content room.