The ornamental design for a gunsafesecuritycable, as shown and described.
FIG. 1 is a perspective view of a gun safe security cable showing our new design;
FIG. 2 is a side elevational view thereof;
FIG. 3 is a top view thereof;
FIG. 4 is an end view thereof; and,
FIG. 5 is a perspective view thereof, shown in environmental use.
The broken lines indicate environment and forms no part of the claimed design. The break lines indicate undermined length and portions between the break lines form no part of the claimed design.