Abstract: A method for secure interaction with a website server capable of an authentication operation with a login operation checking a username and a password, is described. Standard web browsing environments are generally insecure and private information, such as passwords, are prone to theft. The proposed solution comprises securing the password used for the authentication in a trusted computing environment, such as a separate computer, without the need of revealing the password to a browser running in an untrusted computing environment, and basing the browsing on authentication data obtained as result of the login operation, that can be confirmed by the user in the trusted environment, prior of being performed.