TrustShield for everyday digital life
Check a marketplace message before you ship or pay
Marketplace scams often move the conversation away from the platform, invent a payment problem, or create a second transfer that is hard to recover. Check the transaction inside the real marketplace or payment app.
TrustShield looks for common warning signs. It cannot prove that a message is safe or fraudulent, so verify requests through a separate channel you already trust.
Warning signs to slow down for
- A buyer says they overpaid and asks you to refund the difference.
- A stranger says an accidental payment must be returned through a new transfer.
- The other person wants to continue or pay outside the marketplace.
Safer checks you can make
- Check order and payment status inside the marketplace or payment app.
- Use platform support to handle reversals, refunds, and disputes.
- Do not ship or send money based on an email, screenshot, or message alone.
Related scam guides
Use these fictional, source-grounded examples to recognize common patterns and choose safer next steps.
Marketplace overpayment scam: "I sent too much"
Selling online and a buyer overpaid and wants the difference back? How the overpayment scam works on Facebook Marketplace and how to avoid it.
Cash App / Venmo "accidental payment" scam
Someone says they accidentally sent you money on Cash App or Venmo and asks you to send it back? Why you should not, and what to do instead.