  Cooper pairs in two-dimensional unconventional superconductors with broken
inversion symmetry are in a mixture of an even-parity spin-singlet pairing
state with an odd-parity spin-triplet pairing state. We study the magnetic
properties of the impurity bound states in such superconductors and find
striking signatures in their spin polarization which allow to unambiguously
discriminate a non-topological superconducting phase from a topological one.
Moreover, we show how these properties, which could be measured using
spin-polarized scanning tunneling microscopy (STM), also enable to determine
the direction of the spin-triplet pairing vector of the host material and thus
to distinguish between different types of unconventional pairing.
