Classifieds Scam Prevention — How to Avoid Fraud on Facebook Marketplace & Craigslist

You find a barely-used MacBook on Facebook Marketplace for half the retail price. The seller insists on Zelle payment before shipping. Too good to be true? Almost certainly.

In 2025, fraud reports on peer-to-peer selling platforms increased by over 35%. Facebook Marketplace, Craigslist, OfferUp, and similar platforms are prime hunting grounds for scammers who exploit the trust inherent in person-to-person transactions.

Common Classifieds Scam Types

1. Payment Before Shipping

The most basic scam. Goods listed well below market price, seller demands wire transfer or payment app before shipping, then disappears.

Red flags:

• "Must sell today" urgency
• Shipping only, no local pickup
• Refuses platform payment protection, wants Zelle/Venmo/Cash App

2. Fake Payment Confirmations

Scammers send fabricated payment screenshots or fake PayPal/Venmo notification emails to trick sellers into shipping items.

3. Bait and Switch

The item you receive doesn't match the listing — broken, lower quality, or an empty box.

4. Personal Info Harvesting

"I need your full name, address, and phone number for shipping" — then your data ends up in phishing databases.

5. Fake Buyer Overpayment

Buyer "accidentally" overpays with a fraudulent check, asks you to refund the difference.

How to Spot a Scam Listing

Indicator	Legitimate	Suspicious
Price	Market rate	30%+ below market
Meeting	Open to local meetup	Shipping only
Payment	Platform protection	Direct transfer only
Profile	Transaction history, reviews	New account, no reviews
Photos	Original (with timestamps)	Stock or stolen images
Communication	Answers questions in detail	Avoids questions, rushes payment

Safe Trading Checklist

Before the Transaction

1. Check market prices — Too cheap = too risky
2. Verify the seller's profile — History, reviews, account age
3. Reverse image search — Check if photos are stolen from other listings
4. Meet in person when possible — Public location, daylight hours

During the Transaction

5. Use platform payment protection — Always
6. Minimize personal info shared — Only what's necessary
7. Save all conversations — Screenshot everything
8. Verify payments in your bank app — Never trust screenshots

After the Transaction

9. Track shipping — Get tracking number and monitor
10. Record unboxing — Video the opening for evidence

If You've Been Scammed

1. Report to the platform — Request seller account suspension
2. File a police report — Including all transaction evidence
3. Contact your bank — Request chargeback if applicable
4. Report to the FTC — reportfraud.ftc.gov

Sharing Transaction Info Safely

When trading on classifieds, you often share personal details — address, phone number, payment info — through Messenger or text. Use LOCK.PUB to share shipping details through a password-protected memo that expires after the transaction. This keeps your personal information out of permanent chat histories.

Scammers Keep Getting Smarter

AI-written listings, deepfake product photos, and sophisticated social engineering make classifieds scams harder to detect. The golden rule: if the price is too good to be true, it's a scam. Use payment protection and prefer local meetups.

Share personal information safely → Create a secret memo on LOCK.PUB