It is illegal to use insider information for gambling. In many countries and regions, using insider information for investment or trading is considered illegal because it violates the principles of fair trading and laws and regulations. Insider information usually refers to important information that is not made public. Obtaining this information and using it for trading or gambling may result in serious legal consequences, including fines and imprisonment. In terms of gambling, although specific laws may vary from region to region, in most cases, using insider information for gambling will be considered cheating, which may result in disqualification, fines or other legal consequences. If you have questions about a specific situation, it is recommended to consult a legal professional for accurate legal advice.