SK Telecom (SKT) is South Korea’s leading wireless carrier and a major telecom operator.
SK Telecom (SKT) is South Korea’s leading wireless carrier and a major telecom operator. It has recently faced heightened cybersecurity scrutiny, including a large data breach penalty and legal challenges, plus security shortcomings in its femtocell infrastructure and regulatory pushes to tighten SIM security—highlighting the ongoing privacy and threat landscape affecting mobile networks.
The Korea National Diplomatic Academy's online training platform was hacked for nearly 10 months, from April 2025 to February 2026. Attackers exploited a zero-day vulnerability in the server software, allowing them to…
KT Corp was fined ₩53.97 billion (approximately $37.6 million) by South Korea's privacy regulator for failing to secure its femtocell system, allowing unauthorized access to its mobile network. The breach began in…
SK Telecom, South Korea's largest mobile network operator, reported a malware breach that lasted nearly three years, impacting approximately 26.95 million customers. The breach, detected on April 19, 2025, involved…
Coupang, South Korea's largest online retailer, confirmed a data breach affecting 33.7 million customer accounts. The breach has prompted an emergency meeting among senior government officials as it potentially impacts…
On April 11, 2026, South Korea launched a universal basic mobile data access scheme to ensure all citizens have access to online services. This initiative was prompted by recent security lapses among the country's…
Coupang experienced a significant data breach, exposing personal information of approximately 33.7 million users. The leaked data includes names and addresses, prompting the company to warn users about potential scams…
In July 2025, an advanced persistent threat actor known as UNC3886 targeted Singapore's four telecommunications companies, compromising critical infrastructure. The attack was detected by the Infocomm Media Development…
SK Telecom has filed a legal challenge against a $91 million penalty imposed by the Personal Information Protection Commission. This penalty was a result of a cyberattack in April 2025 that compromised the personal data…
SK Telecom has initiated legal proceedings to contest a $91 million fine imposed by the Personal Information Protection Commission due to a data breach involving USIM cards in April 2025. The company argues that it has…
The Korea Consumer Agency has mandated SK Telecom to pay 100,000 won ($67) to each of the 23 million users affected by a significant data breach earlier this year. This decision follows a mediation request from 58…