is decoding your own source code for which you have lost the original files. However, even in that case, the legal remedy is not a hacked decoder; it is contacting IonCube or the original vendor.
Below is a draft article addressing the current landscape of ionCube 13 protection and the risks associated with purported decoders. The Truth About ionCube 13 "Decoders": Security vs. Claims ioncube 13 decoder verified