Many downloadable "cracked" decoders are trojan horses. They may successfully decode your file, but they will simultaneously inject a hidden web shell or backdoor into the output code, compromising your server.
The motivation to find a decoder generally falls into one of three categories, ranging from legitimate developer misfortunes to malicious intent: Ioncube 13 Decoder
An effective, automated "IonCube 13 Decoder" that perfectly restores PHP source code does not exist publicly. IonCube v13 relies on sophisticated bytecode protection aligned with modern PHP engines, making automated cracking tools obsolete or fraudulent. Many downloadable "cracked" decoders are trojan horses
Using a decoder to bypass these protections can lead to legal action, intellectual property theft accusations, and ethical issues. intellectual property theft accusations