NEW: North Korean leader Kim Jong-un's sister, Kim Yo-jong, denied Pyongyang's involvement in the $6.3 billion Binance hack, calling the FBI's attribution of the attack to a North Korean-linked hacking group "baseless nonsense." In comments carried by state media KCNA, Kim Yo-jong accused Washington of repeatedly attempting to portray North Korea as a state sponsor of cybercrime, citing previous U.S. allegations over the $1.5 billion Bybit hack.