If a SILK file becomes corrupted, or if the computer crashes, it has been possible to lose a lot (or all) of the data. SILKin 2.4 creates back-up copies of SILK files every time the User saves their file. It also makes interim back-ups during a work session at intervals selected by the User. If anything goes wrong while saving or opening a SILK file, SILKin automatically reverts to the most recent back-up copy.