Legitimate companies should not ask you to keep secrets, and should not keep secrets from you. All investments carry some risk. If it seems impossible then it probably is. Matrix programs Sign of a Pyramid or Ponzi scheme. Legitimate matrix programs will have an actual product for sale, but make sure it is not grossly overvalued.
Scam artists love bulletin boards because they can easily post false information.
Advertising the fraudulent opportunities is free. Urgency to invest Stable companies would not insist that you sign up for something immediately. Contact the i SEC unit if you have any questions concerning the legitimacy of an Internet investment opportunity. The i SEC has previously brought cases involving aspects of the Internet. Currently, the i SEC is investigating a case involving market manipulation via spam email.