Table 1-11 Breakdown of Cybercrime Clearances (2005 -2009)

Category	Year	2005	2006	2007	2008	2009	Year-on-year comparison
Total ( cases )	3,161	4,425	5,473	6,321	6,690	369	5.8%
Unauthorized Computer Access Act Violation	277	703	1,442	1,740	2,534	794	45.6%
Computer/Electromagnetic Record Offenses	73	129	113	247	195	$ \Delta $	52	21.1%
Computer Fraud	49	63	74	220	169	$ \Delta $	51	23.2%
Unauthorized Creation/Destruction of Electromagnetic Records	17	56	34	20	22	2	10.0%
Obstruction of Business through Destruction of a Computer, etc.	7	10	5	7	4	$ \Delta $	3	42.9%
Network Usage Offenses	2,811	3,593	3,918	4,334	3,961	$ \Delta $	373	8.6%
Fraud	1,408	1,597	1,512	1,508	1,280	$ \Delta $	228	15.1%
Violation of Child Prostitution/Pornography Act (Prostitution)	320	463	551	507	416	$ \Delta $	91	17.9%
Violation of Child Prostitution/Pornography Act (Pornography)	136	251	192	254	507	253	99.6%
Violation of Youth Protection Ordinance	174	196	230	437	326	$ \Delta $	111	25.4%
Violation of Online Dating Site Regulation Act	18	47	122	367	349	$ \Delta $	18	4.9%
Trademark Act Violation	109	218	191	192	126	$ \Delta $	66	34.4%
Distribution of Obscene Materials	125	192	203	177	140	$ \Delta $	37	20.9%
Copyright Act Violation	128	138	165	144	188	44	30.6%
Others	393	491	752	748	629	$ \Delta $	119	15.9%

### a. Violations of the Unauthorized Computer Access Act

In 2009, 2,534 offenses involving violations of the Act on the Prohibition of Unauthorized Computer Access (hereafter referred to as “Unauthorized Computer Access Act”) were cleared, an increase of 794 cases (45.6%) from the previous year and reached a record high.

In terms of motives for unauthorized access, “to illegally gain money” accounts for 88.6% of the total. Acts of unauthorized access are sharply increasing as a means of gaining illegal proceeds.

Diagram 1-27 Trends in the Number of Cleared Unauthorized Computer Access Act Violation (2005-2009)

### b. Network Usage Crimes

In 2009, the number of network usage crimes $ ^{1} $ cleared was 3,961 cases, a decrease of 373 cases (8.6%) from the previous year. Cases of fraud, in particular, marked 1,280 cases and amounted to 32.3% of the total arrest cases. In addition, 40.8% of the fraud cases had occurred through Internet auctions. The total number of cleared cases of violations of the Act on Punishment of Activities Relating to Child Prostitution and Child Pornography, and the Protection of Children (hereafter referred to as the “Child Prostitution/Pornography Act”), the Child Welfare Act, and the so-called Youth Protection Ordinance was 1,327, an increase of 57 cases (4.5%) from the previous year. The situation regarding sex crime offenses involving children (hereafter defined as persons under 18 years of age) remains serious.

## 2 ) Situation of Clearances of Crimes related to Online Dating Sites

The number of incidents involving so-called online dating sites $ ^{2} $ reported to the police in 2009 was 1,203 cases. Of the 548 victims of these incidents, 453 (82.7%) were children. Additionally, there were 348 cases cleared, a decrease of 19 cases from the previous year in violation of the Act on Regulation on Soliciting Children by Using Opposite Sex Introducing Service on Internet (hereafter referred to as the “Online Dating Site Regulation Act”), and of these, 222 offenses where committed by children, an increase of 103 cases from the previous year. In 2009, the number of cases related to websites other than online dating sites $ ^{3} $ that were reported to the NPA was 1,347 and the number of child victims was 1,136, 2.5 times that of online dating sites.