Blockchain identity authentication platform Humanity Protocol replied to Slow Mist founder Cosine on the X platform, saying that thanks to the feedback testnet plaintext private key direct browser storage problem, we have noticed this problem and will solve it as soon as possible and inform users. Previously, the founder of Slow Mist, Cosine Yu X, said in a post, "The Humanity Protocol project directly stores the plaintext private key in the browser sessionStorage, which is a low-level and high-risk error. Fortunately, it is only a testnet at present, and it has not caused actual harm."