The term identity has a clear meaning in our real lives but it can become extremely complicated when moving to digital reality. Technologies such as OpenID, SAML, Infocards promise to create new services through which the user can compose a uniform digital identity, which can be used for his transactions in the digital world. As it is normal with each new technology, new challenges and risks appear. The role of the open source community in this new reality will have a critical role in the digital future of humanity both in technical and in social level.