Things you must know about MetaMask login with private key Please note that logging in with a private key is a convenient way to access your MetaMask account, but it also presents a security risk. Ensure your private key is stored securely and not shared with anyone. It is generally recommended to use safer login methods, such as seed phrases or hardware wallets, which provide an added layer of security. https://sites.google.com/fixuscoins.com/metamaskhelp/blog/metamask-login-with-private-key