How to Avoid Marketplace Scams When Buying Used

Buying second-hand online can be convenient and affordable. Whether it’s Facebook Marketplace, Instagram sellers, or classified apps, there are more opportunities than ever to find what you need — and more scammers waiting to take advantage of it.

It doesn’t take much to get caught off guard. A convincing message, a few stolen photos, and a sense of urgency can be enough. And scams target both buyers and sellers on social platforms and resale apps alike.

Here’s how to spot the red flags, stay cautious, and keep your money — and information — safe when something doesn’t feel right.

Why Marketplace Scams Are on the Rise

Fraud targeting second-hand buyers and sellers is growing fast — and the scams are getting harder to recognize.

Fake listings, payment traps, links to bogus delivery sites, and pressure to switch platforms are all common tactics. The goal is always the same: to grab your money or personal data for identity theft or phishing.

According to GASA’s Global State of Scams Report 2024:

• Nearly $1.026 trillion was lost to scams worldwide in a single year.
• Only 4% of victims managed to recover their losses.

And based on F-Secure’s Digital Moments 2025 survey, 83% of people encountered online scams in 2024 — with 43% of those who thought they could spot one still falling victim.

If you buy or sell used items online, staying alert is your best defense.

Common Scams to Watch for on Marketplace

The more you recognize how scammers operate, the better you can avoid them. These are some of the most frequent tactics used across resale and social platforms.

Fake Buyers and Sellers That Seem Legit

Scammers often list high-demand items using stolen photos or offer to buy your item immediately — if you follow their preferred payment method.

Red flags:

• Prices that are suspiciously low.
• Stock images or vague descriptions.
• Messages with urgency like “need this gone today.”
• Requests to move the chat to text, WhatsApp, or email.

Payment Confirmations That Don't Exist

Fraudsters may send screenshots showing fake payment receipts or claim they’ve “overpaid” and ask you to refund the difference. Others ask you to click a link to “release funds.”

Stay safe: Never rely on screenshots. Always verify payment through your bank or the platform directly.

Delivery Links That Hide Malware

A newer scam involves sending links to fake delivery services. The scammer asks you to install an app to confirm shipment or arrange pickup — but the app actually installs spyware or other malicious software.

Once installed, it can steal logins, monitor messages, and even access banking apps.

Avoid clicking links from strangers, and never download apps from chat links. A good antivirus tool can stop malicious apps before they cause damage.

Phishing Disguised as Social Media Sales

Scammers frequently use platforms like Facebook or Instagram to reach new victims. They make quick contact, keep the deal simple, and move the transaction outside the platform where protections don’t apply.

On Instagram, you might be sent to a fake checkout page that steals your payment info. On Facebook, a scammer might use a fake profile filled with photos and posts to look real.

Keep your messages and payments within the platform whenever possible. Security tools that detect fake sites automatically can help prevent these scams before you click.

The Risks Beyond Losing Money

Financial loss is painful, but marketplace scams often cause deeper harm:

• Identity theft: Scammers can use your personal details — name, address, phone, bank info — to make purchases or open loans.
• Compromised devices: Malware from fake links can keep spying on you long after the scam.
• Ongoing fraud: Once stolen, your data can circulate for years and be reused by other scammers.

Safe Buying Habits for Second-Hand Shoppers

You don’t have to avoid online marketplaces altogether. Just take a few smart precautions.

1. Use Built-In Payment and Messaging Tools

Stick with the official platform systems — they’re designed to protect you. There’s never a good reason to move the deal or install third-party apps.

2. Meet Sellers in Person When Possible

Face-to-face exchanges are harder to fake. Meet in a public, well-lit location, or take advantage of designated “exchange zones” that many police departments now provide.

3. Don’t Trust Unfamiliar Links

Never click on links sent via chat, text, or email that claim to confirm payments or deliveries. Staying inside the platform keeps you safer.

4. Avoid Random App Downloads

Legitimate services won’t require extra apps to verify a transaction. If you’re told to install something, it’s almost certainly a scam.

5. Pause and Check the Details

Look for consistent profile history, reviews, and realistic pricing. If anything feels off, it probably is.

Tech That Helps Catch Scams Early

Even careful shoppers can miss warning signs — that’s why security tools are important backup protection.

• Browsing protection: Warns you before visiting unsafe or deceptive websites.
• Malware defense: Blocks harmful apps and downloads before they install.
• Banking protection: Keeps you on secure payment portals, not scam lookalikes.

With the right tools in place, even unseen scams are less likely to reach you. Stay alert, trust your instincts, and let smart protection handle the rest.