Master's and PhD students own the copyright of their thesis as soon as they start writing it. They can decide the terms of access.
All theses are deposited in electronic form in the Graduate Institute Repository. The library also keeps 1 paper copy of PhD theses, which can be borrowed locally or remotely (via inter-library loan).
By default, access to the electronic copy of the theses in the repository is restricted to the Graduate Institute community (students and staff). PhD thesis authors can request a 3-year embargo: during this period, the thesis will be accessible only to the repository administrators. Authors may also decide to make their thesis open access.
Authors retain full copyright to their thesis and can publish it online on another website or in print.
Be careful (and plan ahead) if you want to include third-party content in your thesis, or to use articles that you have already published in a non-OA journal.