Could you clarify what you mean by "crypto farming"? Is it referring to the process of mining cryptocurrencies, or is it something else entirely? If it's mining, it's generally not illegal, but there may be certain regulations and taxes that miners need to comply with depending on their location. However, if "crypto farming" involves fraudulent activities or violates any laws, it could be considered illegal. It's important to understand the specific details of the activity before determining whether or not it's legal.