South Korea is world-famous for its blazing-fast web, near-universal broadband protection, and as a frontrunner in digital innovation, internet hosting international tech manufacturers like Hyundai, LG, and Samsung. However this very success has made the nation a chief goal for hackers and uncovered how fragile its cybersecurity defenses stay.
The nation is reeling from a string of high-profile hacks, affecting bank card firms, telecoms, tech startups, and authorities companies, impacting huge swathes of the South Korean inhabitants. In every case, ministries and regulators appeared to scramble in parallel, generally deferring to at least one one other moderately than shifting in unison.
Critics argue that South Korea’s cyber defenses are hindered by a fragmented system of presidency ministries and companies, typically leading to gradual and uncoordinated responses, per native media stories.
With no clear authorities company appearing as “first responder” following a cyberattack, the nation’s cyber defenses are struggling to maintain tempo with its digital ambitions.
“The federal government’s strategy to cybersecurity stays largely reactive, treating it as a disaster administration situation moderately than as crucial nationwide infrastructure,” Brian Pak, the chief govt of Seoul-based cybersecurity agency Theori, advised information.killnetswitch.
Pak, who additionally serves as an advisor to SK Telecom’s mother or father firm’s particular committee on cybersecurity improvements, advised information.killnetswitch that as a result of authorities companies tasked with cybersecurity work in silos, creating digital defenses and coaching expert employees typically get missed.
The nation can also be going through a extreme scarcity of expert cybersecurity specialists.
“[That’s] primarily as a result of the present strategy has held again workforce improvement. This lack of expertise creates a vicious cycle. With out sufficient experience, it’s not possible to construct and keep the proactive defenses wanted to remain forward of threats,” Pak continued.
Political impasse has fostered a behavior of in search of fast, apparent “fast fixes” after every disaster, mentioned Pak, all of the whereas the more difficult, long-term work of constructing digital resilience continues to be sidelined.
This 12 months alone, there was a serious cybersecurity incident in South Korea nearly each month, additional mounting issues over the resilience of South Korea’s digital infrastructure.
January 2025
- GS Retail, the operator of comfort shops and grocery markets throughout South Korea, confirmed a data breach that uncovered the non-public particulars of about 90,000 prospects after its web site was attacked between December 27 and January 4. The stolen info included names, start dates, contact particulars, addresses, and e-mail addresses.
February 2025
April and Might 2025
- South Korea’s part-time job platform Albamon was hit by a hacking assault on April 30. The breach uncovered the resumes of greater than 20,000 customers, together with names, cellphone numbers, and e-mail addresses.
- In April, South Korea’s telecom large SK Telecom was hit by a serious cyberattack. Hackers stole the non-public knowledge of about 23 million prospects — almost half the nation’s inhabitants. A lot of the aftermath of the cyberattack lasted by way of Might, during which thousands and thousands of shoppers had been supplied a brand new SIM card following the breach.
June 2025
- Yes24, South Korea’s on-line ticketing and retail platform, was hit by a ransomware assault on June 9, which knocked its providers offline. The disruption lasted for about 4 days, with the corporate again on-line by mid-June.
July 2025
- In July, the North Korea-linked Kimsuky group launched a cyberattack on South Korean organizations, together with a defense-related establishment, this time utilizing AI-generated deepfake photos.
- A North Korea-backed hacking group, Kimsuky, used AI-generated deepfake photos in a July spear-phishing try towards a South Korean army group, in line with Genians Safety Middle. The group has additionally focused different South Korean establishments.
- Seoul Assure Insurance coverage (SGI), a Korean monetary establishment, was hit by a ransomware assault round July 14, which disrupted its core methods. The incident knocked key providers offline, together with the issuing and verification of ensures, leaving prospects in limbo.
August 2025
- Yes24 confronted a second ransomware assault in August 2025, which took its web site and providers offline for a number of hours.
- Hackers broke into South Korean monetary providers firm Lotte Card, which points credit score and debit playing cards, between July 22 and August. The breach uncovered round 200GB of information and is believed to have affected roughly 3 million prospects. The breach remained unnoticed for about 17 days, till the corporate found it on August 31.
- Welcome Monetary: In August 2025, Welrix F&I, a lending arm of Welcome Monetary Group, was hit by a ransomware assault. A Russian-linked hacking group claimed it stole over a terabyte of inside recordsdata, together with delicate buyer knowledge, and even leaked samples on the darkish internet.
- North Korea-linked hackers, believed to be the Kimsuky group, have been spying on overseas embassies in South Korea for months by disguising their assaults as routine diplomatic emails. In response to Trellix, the marketing campaign has been lively since March and has focused a minimum of 19 embassies and overseas ministries in South Korea.
September 2025
- KT, one in all South Korea’s greatest telecom operators, has reported a cyber breach that uncovered subscriber knowledge from greater than 5,500 prospects. The assault was linked to unlawful “pretend base stations” that tapped into KT’s community, enabling hackers to intercept cell visitors, steal info like IMSI, IMEI, and cellphone numbers, and even make unauthorized micro-payments.
In mild of the latest surge in hacking incidents, the South Korean Presidential Workplace’s Nationwide Safety is stepping in to tighten defenses, pushing for a cross-ministerial effort that brings a number of companies collectively in a coordinated, whole-of-government response.
In September 2025, the Nationwide Safety Workplace introduced that it will implement “complete” cyber measures by way of an interagency plan, led by the South Korean president’s workplace. Regulators additionally signaled a authorized change giving the federal government energy to launch probes on the first signal of hacking — even when firms haven’t filed a report. Each steps goal to handle the shortage of a primary responder that has lengthy hindered South Korea’s cyber defenses.
However South Korea’s fragmented system leaves accountability weak, putting all authority in a presidential “management tower” may danger “politicization” and overreach, in line with Pak.
A greater path could also be stability: a central physique to set technique and coordinate crises, paired with unbiased oversight to maintain energy in verify. In a hybrid mannequin, knowledgeable companies like KISA would nonetheless deal with the technical work — simply with extra simple guidelines and accountability, Pak advised information.killnetswitch.
When reached for remark, a spokesperson for the South Korea’s Ministry of Science in ICT mentioned the ministry, with KISA and different related companies, is “dedicated to addressing more and more refined and superior cyber threats.”
“We proceed to work diligently to reduce potential hurt to Korean companies and most of the people,” the spokesperson added.
This text was initially revealed on September 30.
