How to blockchain wallet FAQs | MetaMask
metamask.io › faqsMetaMask keeps your wallet data private unless you authorize permission to share your account address. You will see a MetaMask confirmation when websites request access to view your account address. When using MetaMask for transactions. Transactions made using MetaMask are registered on Ethereum blockchain and are publicly available. If someone knows your account address, they can see the transaction is made by you because accounts on the Ethereum network are pseudonymous.