Scheme of the arrangement for attack on the protocol BB84

In a recent paper, a scheme of the weak measurement of the polarization state of the photon on the basis of the interferometer with two polarizing beam splitters was proposed. In the present paper, a scheme of the arrangement including several such interferometers is considered. The arrangement allows to distinguish four polarization states of the photon used in the quantum key distribution protocol BB84. With the aid of the arrangement, one may perform an intercept-resend attack on the protocol BB84.