The constitutional right to privacy and the operation of algorithms verifying electoral preferences from the face

New technologies bring not only many opportunities but also many risks. Some of them we have already got used to, while others still pose a challenge. The latter undoubtedly includes constantly evolving algorithms. Every day we learn about new possibilities for their application. Unfortunately, these possibilities or applications do not always go hand in hand with the existing rights and freedoms and increasingly pose a threat of their infringement. Recently, research results have been published on the recognition of individuals’ voting preferences from their faces by an algorithm. Such a possibility in application carries the risk of violation of constitutional rights, including the right to privacy. In this paper, this problem will be developed. First, the essence of the right to privacy will be examined and then, based on the research on facial recognition biometrics, I will present the scope and consequences of its violation.