javascript flash actionscript-3 security externalinterface

Flash and javascript ExternalInterface safety

Is it safe to share data between flash and javascript using ExternalInterface? I'm building a game where I want to pass scores to js, not sure if this is safe enough.

Thanks

Solution

Nothing is safe. Anything you pass to JavaScript could be easily retrieved just by using a browser's developer console, by overriding the function called by ExternalInterface and intercepting the arguments.

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