Authentication & Fraud Prevention

Learn to spot fakes, verify authenticity, and protect yourself from scams on every marketplace.

15 free guides

Learn how to spot fake sneakers from Nike, Adidas, and New Balance with expert-level physical checks, authentication app...

Learn to date and authenticate vintage clothing using union labels, care tag laws, single-stitch construction, brand-spe...

Expert guide to authenticating Louis Vuitton, Chanel, Gucci, and Coach handbags with hardware checks, serial number veri...

Learn to authenticate gold, silver, gemstones, and branded jewelry from Tiffany, Pandora, and David Yurman using hallmar...

Learn how to identify and avoid the most common eBay scams targeting buyers and sellers, including counterfeit goods, fa...

Protect yourself from common Vinted scams including off-platform payments, fake shipping, and phishing. Learn how Vinted...

Learn how to identify and avoid common Depop scams including off-app payments, fake receipts, counterfeit goods, and soc...

Learn how to stay safe on Poshmark with this comprehensive guide to Posh Protect, the 3-day acceptance window, luxury au...

Protect yourself from Etsy scams including mass-produced items sold as handmade, chargeback fraud, design theft, and dro...

Stay safe on Mercari with this guide covering the 3-day rating window, return scams, off-platform payment fraud, counter...

Protect yourself from Facebook Marketplace scams with this comprehensive guide covering local pickup safety, fake paymen...

Learn how to spot and avoid common scams on Grailed. This guide covers counterfeit detection, PayPal protection, phishin...

Stay safe buying and selling luxury fashion on Vestiaire Collective. Understand the authentication process, direct shipp...

Stay safe on Gumtree with this guide to avoiding fake bank transfers, courier scams, PayPal fraud, and advance payment t...

Stay safe on Craigslist with this guide to avoiding cashier's check scams, escrow fraud, counterfeit cash, fake ticket s...

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