density of population and culture that has the capability to create strong local particularity. Cyber security Following cyberattacks in the first half of 2013, whereby government, news-media, television station, and bank websites were compromised, the national government committed to the training of 5,000 new cybersecurity experts by 2017. The South Korean government blamed North Korea for these attacks, as well as incidents that occurred in 2009, 2011 and 2012, but Pyongyang denies the accusations. In late September 2013, a computer-security competition jointly sponsored by the defense ministry and the National Intelligence Service was announced. The winners were announced on 29 September 2013 and shared a total prize pool of 80 million won (US$74,000). South Korea's government maintains a broad-ranging approach toward the regulation of specific online content and imposes a substantial level of censorship on election-related discourse and on many websites that the government deems subversive or socially harmful. Aerospace engineering South Korea has sent up 10 satellites since 1992, all using foreign rockets and overseas launch pads, notably Arirang-1 in 1999, and Arirang-2 in 2006 as part of its space partnership with Russia. Arirang-1 was lost in space in 2008, after nine years in service. In April 2008, Yi So-yeon became the first Korean to fly in space, aboard the Russian Soyuz TMA-12. In June 2009, the first spaceport of South Korea, Naro Space Center, was completed at Goheung, Jeollanam-do. The launch of Naro-1 in August 2009 resulted in a failure. The second attempt in June 2010 was also unsuccessful. However, the third launch of the Naro 1 in January 2013 was successful. The government plans to develop Naro-2 by 2018. South Korea's efforts to build an indigenous space launch vehicle have been marred due to persistent political pressure from the United States, who had for many decades hindered South Korea's indigenous rocket and missile development programs in fear of their possible connection to clandestine military ballistic missile programs, which Korea many times insisted did not violate the research and development guidelines stipulated by US-Korea agreements on restriction of South Korean rocket technology research and development. South Korea has sought the assistance of foreign countries such as Russia through MTCR commitments to supplement its restricted domestic rocket technology. The two failed KSLV-I launch vehicles were based on the Universal Rocket Module, the first stage of the Russian Angara rocket, combined with a solid-fueled second stage built by South Korea.