FTX, the bankrupt crypto exchange, has filed a $1.8 billion lawsuit against Binance and its former CEO Changpeng Zhao.FTX accuses Binance of exacerbating its financial instability by selling off a large portion of its FTT holdings.The announcement led to panic among investors, triggering a massive sell-off of FTT tokens and eventually forcing FTX to file for bankruptcy.Zhao denies any wrongdoing and claims Binance acted responsibly by selling its FTT tokens after concerns arose.