The smart card maker Gemplus said it is cooperating with the Internet security vendor Symantec to upgrade the subscriber identity modules that it produces for wireless telephones.

Gemplus will add Symantec's VisualCafe, a widely used tool for developing software in the Java language, to its GemXplore software engineering package, which Gemplus said is the leading tool kit for the modules, or cards, that conform to the GSM standard -- Global System for Mobile communications.

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