Korea has adopted national legislation based on or influenced by the United Nations Commission on International Trade Law (UNCITRAL) Model Law on Electronic Commerce.

Korea has not adopted national legislation based on or influenced by the United Nations Commission on International Trade Law (UNCITRAL) Model Law on Electronic Signatures.

Art. 11 of the "Act on the Prevention of Divulgence and Protection of Industrial Technology" provides that when a target institution holding national core technology developed with government research and development subsidies intends to export such technology to a foreign enterprise or any other external entity, whether through sale, transfer or another means, it must obtain prior approval from the Minister of Trade, Industry and Energy. In reviewing an application for approval, the Minister may grant approval after assessing the potential effects of the export on national security, the national economy and other relevant interests, consulting with the head of the competent central governmental administrative authority, and obtaining deliberation by the Committee. Where a target institution holding and managing national core technology that is not subject to this approval requirement seeks to export such technology, it must submit a prior report to the Minister of Trade, Industry and Energy. Upon receiving this report, the Minister shall examine the likely impact of the proposed export on national security and any other pertinent factors, and shall accept the report if the export is deemed not to pose a serious risk to national security and to comply with the Act. The term national core technology refers to technology designated under Art. 9, the overseas divulgence of which could have a materially adverse effect on national security or on the development of the national economy, owing to its significant technological and economic value in domestic and international markets or its capacity to generate substantial growth in related industries.

Since 2008, the Foreign Trade Act has required a license prior to the export of strategic goods. These items include dual-use items. Among them, electronics (category 3), computers (category 4), telecommunications and information security (category 5), and sensors and lasers (category 6) are relevant to digital goods. These categories are controlled by the Ministry of Trade, Investment, and Energy.

On 28 February 2022, the South Korean Ministry of Economy and Finance (MOEF) introduced export bans on "strategic goods" to Russia. These strategic goods are classified into two categories: "dual-use" and "military use." Among the dual-use items are ICT goods such as machines and apparatus primarily used for the manufacture of semiconductor boules or wafers, semiconductor devices, and electronic integrated circuits. Other items included in the ban are telephone sets, including those for cellular networks or other wireless networks, among others.

The Electrical Appliances Safety Control Act authorises the Korean Agency for Technology and Standards to develop safety certification schemes for the import of electronic appliances. The agency has created three certification schemes: KC Safety Certification, KC Safety Confirmation, and SDoC.
The requirements are the following:
- Type 1 products must go through a certification procedure that includes factory inspection (initial and regular) with mandatory product testing every two years in order to get KC Certification. Type 1 products include electric wire, cords, switches for electrical appliances, motor-oriented electric tools, breakers, insulated transformers, and lighting appliances;
- Type 2 products, which are considered less dangerous, must overcome certification procedures that include safety testing without factory inspection. Type 2 products include electric switches, electric appliances, audio and video electronic apparatus, lighting appliances, insulated transformers, and information technology equipment;
- Type 3 products are qualified to be clear of mandatory certification procedures with a showing of SDoC. Except for products that qualify for SDoC, the other two methods, which include local testing, could be burdensome. Type 3 products include fluorescent lamp starters, DC power supplies, and electric chargers connected to the electric appliances, as well as some electric appliances, audio and video electronic apparatus, and information technology equipment.

The Ministry of Science, ICT & Future Planning (MSIP) is an authority that conducts EMC and wireless communication certification. KC certification is issued by Korea’s National Radio Research Agency (RRA) and requires testing at an RRA-approved laboratory. There are three mandatory certification mechanisms for imported broadcasting and communications equipment to test the safety of radio waves (Art. 58-2):
- Certain equipment must receive a certification of conformity from the Ministry of Science, ICT and Future Planning after undergoing a test by a designated third-party laboratory. Such equipment includes wireless telephone alarm automatic receiver, radar equipment for ships, telephone, and modem;
- Equipment that is not subject to this certification may come in only with a showing of confirmation that verifies the compatibility after undergoing a test either by a designated third-party testing body or self-tests. The equipment that falls in this category includes Computing devices and peripherals, broadcasting set-top boxes, measuring instruments, industrial devices, and connectors.
- Equipment that is not subject to either of these schemes must have interim conformity after passing a test showing conformity with domestic or international standards. Equipment that is newly developed but whose conformity assessment criteria have yet to be developed falls in this category.
Korea has entered into a mutual recognition arrangement with the United States, Canada, EU, Vietnam, and Chile. However, except for Canada, the import of broadcasting and communications equipment from other countries must still receive certification of conformity from the South Korean government, even if a conformity test has been conducted in the exporting countries.

Pursuant to Art. 4 of the National Intelligence Service Korea Act and Art. 56 of the Electronic Government Act, the National Intelligence Service (NIS) imposes security verification requirements on network equipment and cyber-security software in government procurement. Generally, they may satisfy the requirement by showing that the products are certified at a Common Criteria Recognition Arrangement (CCRA) accredited lab outside of Korea. However, certain network equipment must undergo an additional security verification process. Furthermore, the Common Criteria (CC) certification may not be sufficient for two reasons. First, NIS may substitute the CC certification with other certification mechanisms that were internally developed (e.g., GS Certification). Second, NIS may reject a CC certification when it deems that the certification does not cover particular functions of the product that the government entity needs.

According to Art. 9 of the Notice of Import Customs Clearance for Express Goods, as amended in 2016 to increase the value of the de minimis rule, the de minimis threshold, meaning the minimum value of goods below which customs do not charge duties, is USD 150, which is below the 200 USD threshold recommended by the International Chamber of Commerce (ICC). This threshold applies to goods for personal consumption and samples not exceeding USD 150, with an exception for trade with the U.S. and Puerto Rico, where the threshold is USD 200 as per the Korea-US FTA, allowing these goods to be exempt from taxes and duties collected by customs.

According to Art. 4 of the Domain Name Management Rules set forth by the Korea Internet & Security Agency (KISA), domain name registrants must have a postal address of their place of residence in Korea. In addition, it is reported that a Copy of Company registration in Korea with proof of company address in both English and Korean languages is required for registration and that a Korean-based administrative contact is mandatory.

Under Art. 31-2.1 of Personal Information Protection Act, a data handler without an address or business office in Korea must designate a local representative in writing if they meet certain criteria, such as revenue thresholds and the volume of personal data retained.

According to Art. 32 of the Act on Promotion of Information and Communications Network Utilization and Information Protection, foreign IT service providers without an office in Korea are required to appoint a local agent responsible for ensuring compliance with data privacy regulations.

It is reported that Korea imposes an identity requirement for SIM registration. Anyone wanting to purchase a SIM card has to provide their national ID card or a passport in case of foreigners to activate a new prepaid SIM card.

The amendment of the Telecommunications Business Act by Act No. 12761 on 15 October 2014 included Art. 22-3. According to Art. 22-3, value-added telecommunication service providers, encompassing all online hosts of applications and content, must implement technical measures as outlined in the Presidential Decree to counteract the dissemination of explicit materials.

It is reported that, in February 2025, Korea’s data protection authority blocked downloads of the application developed by the Chinese artificial intelligence firm DeepSeek. The application is said to have become accessible again two months later, following changes to the company’s privacy practices. It is also reported that, in February 2025, multiple Korean ministries blocked access to DeepSeek within their own organisations due to security concerns.