1. Riot Games Korea is working on resolving various issues such as DDoS attacks and errors with its anti-cheat program, Vanguard. 2. The company has collaborated with the security industry to address DDoS issues but acknowledges that fundamental solutions require more involvement from the central office. 3. The LCK league has been affected by DDoS attacks, leading to game delays and the decision to switch to recorded broadcasts without a live audience. T1, a top team, has also been a target, prompting them to demand action from Riot Games. Vanguard has caused connection errors and black screen issues, leading to a global server outage in April. Security experts believe that resolving these issues will take time and require more effort from Riot's central office.