Evaluating only Cyworld US’s profile at its peak — without knowing the outcome — the model ranked Competition as the #1 likely cause. Documented cause: Founder chaos.
Key Events Timeline
FOUNDING
Cyworld US founded
CEO CHANGE
Leadership crisis or CEO change
SHUTDOWN
Silent Shutdown: Cyworld US ceases operations
Full Analysis
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Documented cause
Cyworld was South Korea's dominant social network with 27M users (over half of Korea's population). In 2006, SK Telecom launched Cyworld US to replicate the Korean success in America, competing with MySpace and the nascent Facebook. Cyworld's model — personalized mini-homepages decorated with purchased virtual items ('dotori' acorns) — was successful in Korea's high-context social culture. In the US, the model found no traction: MySpace had the music-driven social graph, Facebook had college networks, and Cyworld had nothing — its existing Korean user base was entirely in Korean-language Cyworld and couldn't easily bridge to the US version. After 4 years of failing to gain US users, SK Telecom shut down Cyworld US in 2010.
Lesson
“A successful social network in one country is not a validated product for another country — it's a country-specific social phenomenon. Geographic expansion requires solving the bootstrapping problem from scratch, not just opening a regional office.”
Failure anatomy
Collapse type
Silent Shutdown
🐌 LOW
Moat type
Korean Cultural Network Effects
Fatal mistake
Social network behavior was Korean-culture-specific — not transferable to US market