Well then maybe they shouldn't have been gambling with illegal unregulated securities?
Irrelevant and speculation. First focus on responsibility of the owners towards their customers.
Under what law, enforced by what government?
If you and I were stranded on a desert island, with no laws enforced by no government, I would still have the right to take back my food by force if you stole it from me. If there is no law to enforce and no government to enforce it, then there is no loss of one's natural right to self-defense. It is only when there is a functional justice system that we are willing to give up our right to non-emergency self-defense of our lives and property.
Where do you think a government gets the right to make and enforce laws?