Open Constitution is maintained on a machine intelligence system, therefore we let technology do the heavy lifting, in making events and transactions on this service platform, more secure. Further, Open Constitution network has different organisational level integration, working together using Oauth and security tokens.
There are authentication and authorization factors deployed on this platform. We have Fraud Detection and Analysis measures enabled on the Vault for unethical commerce postmortem analysis on this Association Marketplace.
Having said that nothing on this planet is certain and so is your Vault, but it is secure to the standards and best practices, employed by a voluntary union.