When you see a thread titled it’s usually:
"Free" files on forums are notorious for containing backdoors or info-stealers that can compromise your laptop. Xdecoder 10.3 Free - MHH AUTO - Page 1
If the "free" version doesn't handle checksums correctly, you could "brick" (permanently disable) the ECU as soon as you flash the modified file. When you see a thread titled it’s usually:
Many cracked versions are unstable. They might tell you they’ve deleted the EGR, but in reality, they’ve modified the wrong part of the hex code, leading to unpredictable engine behavior. but in reality
Some official software developers track the IDs used in cracked versions and can blacklist your hardware from ever using the legitimate version in the future. How to Navigate MHH AUTO Safely