Security risks of today, terrorism, these are the factors that lead to breaching the traditional legal guarantees of the individual and to change of perception of human rights. The author deals with the thesis that the state must guarantee human rights, but in the effective elimination of security threats is forced to violate them. Against the background of the historical development of human rights and in the context of the philosophical concepts of relationship of the state and individual, relationship of freedom and security by Thomas Hobbes, John Locke and Immanuel Kant, the author seeks to clarify the function of human rights and the risk of breaching them. Guarantees of the freedom of individual are a response to impending dangers. Violation of human rights means loss of legitimacy of the state action. Security measures are often overreaction of state. We should not stop the effort to take the human as a purpose not means.