SWFProtection - Version 1.4 SWFProtection is a strong and easy to use Flash SWF encryption tool which helps you protect SWF files from Flash decompilers. Unlike other SWF encryption software, SWFProtection protects not only Actionscripts, but also all images, sounds, buttons and sprites resources in your SWF files. SWFProtection can also stop your SWF files from opening on local computer and limit SWF files to be hosted on specified domains.