South Korea has extensive internet filtering policies in place to restrict access to political content related to North Korea, gambling sites, pirated software, and pornography. The National Security Law is the primary regulation governing internet speech and aims to prevent communist ideology and pro-North Korean sentiment. Internet service providers are responsible for policing their networks and filtering a government list of over 120,000 banned sites. While testing found little blocking of sensitive content overall, minors' access is restricted by age verification requirements on adult sites.