QR Code Scams: How Cybercriminals Are Using Barcodes to Steal Your Data

Not long ago, QR codes were just a tech novelty. Then came the pandemic, and suddenly they were everywhere—from menus and event check-ins to contactless payments and parking meters. Their convenience is undeniable, but with that convenience comes risk.

Cybercriminals are increasingly using QR codes as a tool to scam people, stealing personal and financial information with a single scan. This type of scam is called quishing – short for QR code phishing. Here’s how they do it—and how you can stay safe.

What Is a QR Code, and Why Should You Be Cautious?

A QR code (short for “Quick Response” code) is a type of barcode that stores data—most commonly URLs. When scanned by a smartphone, the code takes you directly to a website, app download, or payment page.

Unfortunately, you can’t see where a QR code will take you until after you scan it. This makes QR codes a perfect vehicle for scammers. All it takes is a malicious code placed in the right spot, and unsuspecting users can be led to a fake website, infected with malware, or tricked into sending money.

How Cybercriminals Are Exploiting QR Codes

1. Phishing with Malicious Redirection

Scammers create fake QR codes that redirect to phishing sites. These look like legitimate login or payment pages but are designed to harvest usernames, passwords, credit card numbers, or even multi-factor authentication codes.es.

2. QR Code Overlays

QR codes are now used for payments in restaurants, parking lots, and more. Printed QR codes can be easily covered with stickers. A malicious actor might place a fake QR sticker over the original redirecting users to fraudulent sites.

3. Email and Messaging Scams

Some phishing emails now include QR codes instead of links to bypass spam filters. These messages may say things like “Scan to update your account” or “Secure your login before access is disabled.”

5. Physical Mail Scams

Yes, even snail mail isn’t safe. Some scammers are sending fake bills, toll violations, or utility notices with QR codes that claim to lead to a payment page or account verification site.

How to Protect Yourself from QR Code Scams

• Think Before You Scan: Inspect the area around the QR code. Look for stickers, signs of tampering, or codes placed in odd locations. If the QR code is unsolicited or comes in an unexpected message, be cautious.
• Preview the URL: Many smartphones show the destination URL before opening it—use this feature. If the URL looks odd (misspellings, strange domains), don’t proceed.
• Use a Trusted Scanner App: Some QR scanning apps or built-in phone features offer security checks and URL previews.
• Keep Devices Updated: Ensure your phone’s OS and security software are up to date to help catch potential threats.

QR codes aren’t inherently dangerous—they’re just tools. But like any technology, they can be misused. With a little awareness and a dose of caution, you can continue enjoying the convenience of QR codes without falling into a trap.

Stay informed, stay alert, and always double-check before you scan.