Acceptable Use Policy
Last updated October 21, 2026
1. Purpose
This policy describes activity that is not allowed on Mustard. It forms part of our Terms of Service, and we may update it to protect customers, comply with the law, and keep the Service secure.
2. Lawful, personal use only
Mustard is for lawful, personal, non-commercial transfers between individuals. You may not use it to run a business, to process payments for other people, or to act as an unlicensed money transmitter or payment aggregator.
3. Prohibited transactions and conduct
You may not use Mustard in connection with: unlawful activity of any kind; fraud, scams, or unauthorized transactions; money laundering or terrorist financing; evading sanctions, taxes, or reporting; transactions for or on behalf of an undisclosed third party; or goods and activities that are illegal or restricted by law or by our partner banks and networks, such as illegal drugs, weapons, or unlawful gambling.
4. Security and integrity
You may not try to gain unauthorized access to the Service or to other people's data; probe, scan, or test our systems for vulnerabilities without permission; interfere with or disrupt the Service; use bots or automated means to access it; or reverse engineer the app except where the law allows.
5. Accurate information
You must give us true, current, and complete information, keep it up to date, and never impersonate anyone or misrepresent your identity or the purpose of a transfer.
6. What happens if you break this policy
Breaking this policy may lead to transaction holds or reversals, lower limits, suspension or closure of your account, and reports to law enforcement or regulators. Some conduct may also expose you to civil or criminal liability.
7. Reporting
Report suspected fraud, security issues, or breaches of this policy to support@mustardmsb.com.