Moreover, the MetaMask sign in provides one of the simple but secure ways to connect with blockchain-based applications at your fingertips. The best thing about MetaMask it offers your full control while interacting with different decentralized web. However, MetaMask never takes users' personal information and their private key access on their server. MetaMask provides users full control over their assets and private keys. But responsibilities come with risk, if you lose your keys once then you would not be able to recover your wallet. That’s why it is important to keep your wallet recovery phrase and password safe and secure.