The interface provides some measure of security to prevent users from tampering with their profile without permission. Each user has a password attached to their profile. The system's root password is required to set a Amaya profile password for a user. Once in place, the user's Amaya password is required to change the profile or to deactivate filtering. In this manner, users who possess their own password are able to configure their filters, but users who are not given their password are unable to change their profile configuration.
Profile installation consists of clicking on a link to a profile in the browser window.
The profile is secured to prevent tampering. Since some information about the filter is stored in Amaya when the user quits the program, this information had to be protected. Cryptographic fingerprints of this information is stored in the user's .thotrc file. An MD5 hash of the user's profile appears, as well as a hash of their password. Modifications of the user's profile can be detected by comparing the profile to its hash.