The LCK (Korea's League of Legends league) was repeatedly disrupted by DDoS attacks in 2024-2025 that forced matches offline, with T1 suspending all player streaming indefinitely

Beginning February 25, 2024, South Korea's League Champions Korea (LCK) suffered sustained DDoS attacks during live broadcast matches between DRX vs. Dplus KIA and OKSavingsBank BRION vs. Kwangdong Freecs, forcing the league to build an entirely new offline server infrastructure at LoL Park. Despite countermeasures announced on March 13, 2024, attacks persisted into 2025, culminating in T1 -- the most decorated esports organization in League of Legends history -- announcing on January 6, 2025 that all player streaming was suspended indefinitely due to ongoing DDoS targeting. Why it matters: The world's most prestigious League of Legends league cannot guarantee match integrity during live broadcasts, so sponsors paying premium rates for LCK broadcast exposure face unpredictable disruptions that devalue their investment, so T1's star players like Faker lose streaming revenue (a major income source) due to security threats unrelated to their gameplay, so the league had to invest in isolated offline infrastructure that increases operational costs and limits the flexibility of remote/online competition formats, so other esports leagues worldwide face the same vulnerability with no industry-standard mitigation framework. The structural root cause is that competitive online games require real-time server connections with minimal latency, making them inherently vulnerable to volumetric DDoS attacks -- and the gaming industry's DDoS mitigation operates independently per publisher/league with no shared threat intelligence network, meaning each organization must independently solve the same infrastructure problem that sophisticated attackers can adapt to across targets.