Scam library · Banking & payment apps · Shopping
Venmo or payment app 'sent by mistake' scam
You get a Venmo, Cash App or PayPal notification: someone you don't know sent you $200. Minutes later they message you, embarrassed: 'So sorry, I sent that to the wrong person. Can you please send it back?'
It feels polite to help. But the incoming money was often paid with a stolen card or bank account, and it can be pulled back later. If you've already 'returned' it from your own balance or bank, you're out that money.
What the message looks like
From: Venmo request from @jess-m-2241 (a stranger)
Jess M. paid you $250.00 · "rent"
Message: Hi!! I'm so sorry, I typed the wrong username. That was my rent money 😩 could you please send it back to @jessm-new? My old account is getting closed. Thank you so much!!
How this scam works
When the real cardholder reports the theft, the original payment is reversed. Your 'refund' to the scammer isn't, because you sent it voluntarily. Some versions ask you to return the money to a different account 'because my old one was closed', which is a clue.
A related trick uses fake payment notifications: an email or text that looks like a Venmo or Cash App alert, but no money ever arrived. Always check the app itself, not the notification.
The FTC advises treating payment apps like cash: once you send money, it can be very hard to get it back.
Red flags
- Money arrives from a stranger, followed fast by an urgent request to return it.
- They ask you to send it to a different account, or by another app.
- Emotional pressure: rent, medicine, a sick child.
- A 'payment received' email or text that doesn't show up in the app.
- They ask you to buy gift cards or crypto 'instead'.
How to tell it’s fake
- Open the app yourself and check whether the money really arrived and whether it's still pending.
- Don't send it back yourself. Contact the app's support from inside the app and ask them to reverse the payment.
- Payment apps let senders dispute mistaken payments through support. A real person who made a mistake can do that.
What to do if you clicked, paid or shared info
Don’t panic, and don’t blame yourself. These scams are built by professionals. Act quickly, one step at a time.
If you clicked a link or called back
- If you only replied, stop responding and report the account in the app.
If you paid
- If you already sent money back, contact the app's support right away and your bank. Report it at ReportFraud.ftc.gov.
If you shared personal info, a password or a code
- If you shared login details or a code, change your password and turn on two-step verification.
Where to report and get help (U.S.)
If a message seems legit and you’re still not sure, get a second opinion before you act. Reporting helps stop scammers, even if money can’t be recovered. If you are in danger, call 911.
- Your bank or card issuer
Call the number on the back of your card or on your statement, not one from the message. Ask them to stop or reverse the payment and to watch the account. - Federal Trade Commission (FTC) · ReportFraud.ftc.gov
Report the scam and get a step-by-step recovery plan. - FBI Internet Crime Complaint Center (IC3) · ic3.gov
Report scams that happened online, especially if money was lost. Include phone numbers, websites and payment details. - AARP Fraud Watch Network Helpline · aarp.org helpline
Free, for anyone of any age: trained volunteers help you sort out next steps. 877-908-3360, Monday to Friday, 8 a.m. to 8 p.m. Eastern. - IdentityTheft.gov · IdentityTheft.gov
If you shared your Social Security number or someone opened accounts in your name.
How Gmork Scam Guard would warn you
When you open Venmo, Cash App or PayPal on your computer in Chrome or Edge, Scam Guard watches for fake payment pages and lookalike login screens. In emails and chats you have open, it recognizes the 'sent by mistake, please send it back' script and suggests letting the app's support handle the reversal. When a request seems kind and legit, that's when a second opinion helps.
Scam Guard can miss things, so the checks above still matter. See what it warns about and what it keeps private.
Questions people ask
- Should I send back money someone sent by mistake?
- No. Contact the app's support and let them reverse it. If the money was stolen, a direct refund from you can't be undone.
- Can I just keep it?
- Don't spend it. If it was stolen, it will likely be pulled back. Report it to the app and wait.
- How do I know if the payment notification is real?
- Open the app directly. If the money isn't in your balance or activity, the notification is fake.