Changpeng Zhao (CZ), founder and CEO of Binance, responded to unexpected trading issues on Twitter, saying that it has been confirmed that the unrecognizable orders were caused by the leakage of API keys. There is only one valid API key, which is used for the crypto trading robot platform Skyrex. Binance will try to disable all API keys used by Skyrex and find a way to identify the relevant issues as soon as possible.