A system and method are disclosed for conducting secure electronic transactions using dual-authentications. A secure server stores security information for a plurality of users and authorizes transactions being conducted by these users. A user computer system having a trusted platform module is used for storing security information relating to at least one user account. Protected environments are created to facilitate secure connections based on at least the security information stored in the trusted platform module. Transactions between the user/electronic merchants and between the user/secure server are conducted within protected environments. When a user conducts an electronic transaction with an electronic merchant, the transaction is authenticated by the secure server before can be completed.