supersymmetry seems to act as a cosmic censor for static black-hole-type configurations but not for the stationary ones, such as the Kerr-Newman $M=|q|$ solution.

This paper is organized as follows: in Section \[sec-d4BPS\] we review the timelike class of supersymmetric solutions of $N=2,d=4$ supergravity coupled to vector multiplets. First, we review how all the solutions in this class can be constructed from a symplectic vector of real harmonic functions and then in Section \[sec-KSI\] we derive the KSIs that, by assumption of supersymmetry, all solutions must satisfy. In Section \[sec-attractors\] a re-derivation of some of the main results involving $N=2,d=4$ supersymmetric black-hole attractors, taking advantage of the actual and explicit knowledge of all the solutions of this kind, which has helped us to improve some of the presentations existing in the literature and prove some new results.

In Section \[sec-n2d4\] we study how the KSIs constrain the possible sources and singularities of black-hole-type solutions and the interplay with the attractor equations in a general way. The main result of this section will be the formulation of three conditions that express the existence of supersymmetry everywhere in the solutions, including, particularly, the locations of the sources. These conditions should ensure the 