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Listed on a ransomware leak site

SK-Telecom - Data reuploaded

sktelecom.com

SK-Telecom - Data reuploaded was listed on the Coinbase Cartel leak site on Sep 15, 2025. Brandefense has recorded 2 separate claims against it. Information as of Oct 19, 2026.

Updated continuously · figures as of Oct 19, 2026
Claimed by
Coinbase Cartel
First listed
Sep 15, 2025
Claims recorded
2

2 Leak-Site Claims.

Coinbase CartelConfirmed claim
Posted on the leak site
Feb 28, 2026
Collected by Brandefense
Feb 28, 2026
Data claimed
Not stated
Leak-site post text, written by the group
SK Telecom is a leading South Korean wireless telecommunication services provider. It covers a vast range of services including mobile phone services, broadband Internet services, and digital media services. The company is renowned for its advancements in 5G, AI, IoT and autonomous vehicle technology. It is a key player in developing and setting standards for these technologies worldwide.
Coinbase CartelConfirmed claim
Posted on the leak site
Sep 15, 2025
Collected by Brandefense
Sep 15, 2025
Data claimed
Not stated

Posted again 1 time by the same group

Leak-site post text, written by the group
South Koreas largest wireless carrier offering mobile services broadband IPTV and cutting-edge AI and IoT solutions

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Figures as of Oct 19, 2026. Confirmed leak-site claims collected by Brandefense technologies and validated by Brandefense analysts.

Listed on a leak site means a ransomware group has claimed the company; it is not a confirmed breach. To request a correction or removal, contact Brandefense.