Scan at Your Own Risk: The Rise of Quishing Attacks

It feels like every now and then, there is a new term for scams. First, it was phishing, then there was smishing before vishing joined in and now we have Quishing. Quishing is simply the act of stealing sensitive data through QR codes. Scammers embed malicious links in QR codes, tricking unsuspecting users into scanning them. 

What makes Quishing particularly dangerous is that QR codes seem harmless and are often trusted, making them the perfect vehicle for launching phishing attacks. As QR codes become more widespread, from restaurants to payment systems, so do the risks.

Watch out for Quishing, the scam you never see coming

Imagine a phishing scam with a twist. Enter Quishing: the cybercriminal's clever play on “QR code phishing.” simply put, Quishing is the art of stealing data disguised as a QR code. These codes, which are meant to simplify tasks like accessing websites or making payments, are now being used to direct people to fake websites or secretly download malware onto their devices. The trick with Quishing is that you don’t see the URL before scanning, so you have no idea where the code will take you until it’s too late. It’s this hidden nature of QR codes that makes Quishing hard to detect.

Real-World Examples: How Quishing Happens

One of the more common Quishing scams takes place at parking meters. Scammers stick fake QR codes over the real ones, and when drivers scan to pay, they’re redirected to fraudulent sites that look like legitimate payment portals. Without realizing it, they enter their credit card information, only to find out later, often weeks down the road, that their details were stolen.

Restaurants are also becoming a target. With menus going digital, scammers can place their fake QR codes over the ones provided by the restaurant. Diners scan to view the menu or pay, but instead, they’re led to a site designed to steal personal or payment details.

Quishing is also being used in fake bills. Scammers pose as utility companies or government agencies, sending out emails or even paper letters that include QR codes. People scan them, thinking they’re paying a legitimate bill, but the code takes them to a fake website that collects their sensitive information.

And it doesn’t stop there. In some cases, scanning a malicious QR code can trigger the download of malware onto your device. This malware might steal your data, monitor your activities through spyware, or even lock your device in a ransomware attack. Many users may not even realize their phone or computer has been compromised until it's too late.

How to Spot and Avoid Quishing Scams

When it comes to Quishing, there are a few key warning signs and best practices to keep in mind to avoid falling victim:

Signs of a Quishing Attack

Suspicious QR Codes

Always check the appearance of a QR code before scanning it. If it looks damaged, out of place, or like a sticker covering something else, it could be a scam. Scammers frequently paste their own codes over real ones, especially on parking meters or in restaurants.

Unusual Requests

Be on guard if scanning a QR code leads to a page asking for personal details like credit card numbers or passwords. Legitimate codes should rarely ask for sensitive information upfront. Also, if you're prompted to download an app or software unexpectedly, it’s a red flag unless you’re sure it's from a trusted source.

How to Protect Yourself from Quishing Scams

When scammers get creative you need to up your game as well as a simple mistake such as scanning the wrong QR code can lead to huge losses. Here are several ways you can protect yourself and your personal information:

Verify Before You Scan

When in public spaces, such as restaurants or parking lots, always check with an employee or business owner to confirm the QR code is legitimate. If something doesn’t look right—such as a misplaced or poorly printed code—it’s better to avoid scanning it altogether.

Watch Out for Unsolicited QR Codes

Be especially cautious when you receive QR codes via emails, text messages, or social media from unknown senders. Scammers often pose as utility companies, government agencies, or other trusted sources to trick you into scanning a malicious code.

Use QR Scanners with Previews

Some QR code scanning apps allow you to see a URL preview before you are redirected to a website. This small feature can help you decide if the link looks safe or suspicious, giving you a chance to back out before it's too late.

Keep Your Security Software Updated

Make sure your phone or computer’s security software is always up to date. Modern security tools can detect and block malicious files or websites that may be triggered when you scan a harmful QR code.

Be Cautious with Payments

If you’re prompted to make a payment after scanning a QR code, especially in an unfamiliar place, take a moment to verify the source. Double-check the payment terminal or website before entering any financial information to avoid handing your details over to scammers.

The Bottom Line: Scan Smart, Stay Safe

As convenient as QR codes are, they can be a hidden trap when used by cybercriminals for Quishing scams. These attacks thrive on trust and the ease with which people scan without thinking. To stay safe, always be cautious about where and when you scan QR codes, especially in public places or from unknown sources.  Be sure to use apps that show URL previews, and keep your security software up to date. With a bit of keen eye, you can enjoy the convenience of QR codes without falling victim to hidden threats. Scan smart—don’t let Quishing catch you off guard!

Image source: Pixabay