Yeah, you can go to the online config tool for flash and play around with the options and hope.
Try this for starters. It will stop anyone from dumping stuff on your computer to recognize you:
LocalStorageLimit = 1 AssetCacheSize = 0 ThirdPartyStorage = 0 AssetCacheSize = 0 AutoUpdateInterval = 1 LegacyDomainMatching = 0 LocalFileLegacyAction = 0
Kudos go to: Adobe Flash, The Spy in Your Computer – Part 2