Facebook Marketplace buyer: how to tell if they're real

By the Authentk team  ·  Published October 20, 2026  ·  Updated October 20, 2026

You can't tell from the profile alone. A real buyer will happily stay in Messenger, pay in a way you can confirm yourself, and send a live photo or hop on a short video call before you share your address. A fake one will push you off the platform, send a payment screenshot, or find a reason not to show their face.

What Marketplace shows you, and what it doesn't

When someone messages about your listing, Marketplace shows you their Facebook profile and, if they've bought or sold before, their ratings. Meta's own tips for selling start with reviewing the other person's profile and keeping the conversation on Facebook. Its safety page is mostly about red flags and reporting: it warns that buyers who ask you to contact them "by phone or email, especially early on in your conversation" may have ill intent, and tells you to check your own account rather than trust a payment screenshot.

What none of this does is confirm that the person typing is the person in the profile photo. A profile can be a week old, copied from someone else, or a real account that was hacked. That gap matters most at one moment: when a stranger asks for your address.

Red flags specific to Marketplace buyers

• They want to move to text or email before you've agreed on anything. Off Messenger, you can't report them.
• A "payment sent" screenshot instead of money in your account, or an email saying the payment is "pending" until you do something.
• Overpayment. They send too much, by check or app, and ask for the difference back.
• A verification code. They say they want to make sure you're real and ask you to read back a code texted to you. The FTC's words: "That's a scam, every time."
• Someone else will pick it up, a "mover" or "cousin", and the buyer can't meet or show their face.
• No questions about the item, just urgency and your address.

The numbers behind the caution: in 2024 the FBI received 49,572 reports of non-payment or non-delivery, the category that covers sales where one side never pays, with $785 million in reported losses (FBI IC3, 2024 Internet Crime Report).

Checks that work, and their limits

• Profile age and ratings. Useful, but accounts get hacked and sold. A good profile lowers the odds; it doesn't prove a person.
• Money you can see. Cash counted in person, or a payment visible in your own app. Never a screenshot.
• A public meetup. A busy place in daylight, or a police safe exchange zone. It lowers the risk even when every other check comes up empty.
• A short video call. Most fake accounts avoid one, though a call can be faked too, and some honest people find it awkward.
• A live photo. Quick and low-pressure. The catch with an ordinary selfie is that you can't tell if it was taken now or months ago, by them or by someone else.

Our longer guide covers the full meetup: Facebook Marketplace meetup safety: 9 rules before you meet.

How to ask without being awkward

Say why, keep it short, and make it about the visit, not about them:

"Great, it's yours. Before I share my address, could you send a quick live photo so I know who's coming? Happy to meet somewhere public instead if that's easier."

Offering the public option matters. An honest buyer picks one. A scammer usually picks neither.

Where a signed selfie fits

Authentk adds a check a plain selfie can't give you. You send a request link from the app; the buyer installs the free iPhone app, signs up with their phone number, and takes one live photo, which their iPhone signs at the moment it's taken. You get a photo you know was taken just now and hasn't been edited, and you compare it to their profile yourself. It doesn't prove who someone is legally, it doesn't check ID, and the buyer needs an iPhone to answer. See what a verified photo looks like.

Questions