Abstract: The invention relates to a method for storing information in information storage means of a security module and for operating on information units in a security module, and the associated security module, wherein two storage areas (41, 42) are defined, one of which (41) is for storing the information (a, b, c; d, e, f) in dispersed pieces (a, b, c), (d, e, f), the other of which (42) is for storing addresses (AA, 92) at which the pieces of information are located. The storage in the second storage area takes place in positions that are based on the addresses (83, 86) of the pieces of information in the first storage area (41), as defined before dispersion.