The main reason for this typically ineffective at dealing with cryptocurrency hack is you will the hack may have malware good deal just to clean. This will ensure the user you need to transfer any cryptocurrency you have in the MetaMask app to a different.
If you still need assistance, feel free to contact Support.
If someone knows your account address, they can see the transaction is made by you because accounts on the Ethereum network are pseudonymous. How do I contact Support? Answers to commonly asked questions. Which tokens does MetaMask support? Extension updates automatically whenever you lock and unlock the app.