Security analyses of cracked MultiECUScan files have found that a majority of antivirus engines detect them as infected. While some in forums dismiss these as "false positives," the risk is never zero. As one expert warns, "The biggest problem is that cracked software often contains viruses," and can leave your computer "even more vulnerable than having no antivirus at all".
: A specific document focusing on hardware compatibility and common issues like the CAN termination resistor problem. Risks of Using "Cracked" Software
The official website offers a free version of Multiecuscan. While it has limitations (such as a 20-minute connection limit and restricted access to certain advanced modules), it is fully functional for reading and clearing basic engine fault codes.