Defense, Verification, and Safe Settings

The Core Defense: Pause, Verify, Report

Even the best filters can be bypassed by quishing, or QR code phishing. To stay safe, as discussed in Hoxhunt, you must adopt the 'Pause, Verify, Report' framework. First, pause and ask why you're being asked to scan. Next, verify the URL preview on your screen before tapping. Finally, if it feels wrong, report it to your security team.

Physical Quishing: The Parking Meter Trap

Imagine you're in a rush and see a 'Scan to Pay' code on a parking meter. Look closely. Attackers often place high-quality vinyl stickers over legitimate codes. Tapping this could hand your credit card details to a criminal. Before scanning, run your finger over the code; if it's raised or misaligned, use the official app instead.

2026 Trend: HTML Table Quishing

A major 2026 trend identified by SANS ISC involves attackers evading security filters by building QR codes out of HTML tables. Instead of a single image file, the code is rendered cell-by-cell in the email's background. This makes the code invisible to many automated tools. Be extra wary of emails that contain a large QR code with almost no text.

Hardening Your Device: Android

To prevent automatic redirects, you must harden your mobile settings. On Android, navigate to your App settings. Look for your QR Code Scanner configuration. Under Data Processing, ensure 'Launch Browser' or 'Open Links Automatically' is toggled off, as recommended in SusQR.

Hardening Your Device: iOS

For iPhone users, the key is the preview habit. You can disable 'Scan QR Codes' in your Camera settings entirely, but if you keep it on, always look at the yellow 'pill' button first. Never tap immediately. Inspect the domain name— if it's a shortened link or random characters, do not proceed.

Takeaways & Definitions

Let's review our defense strategy. Remember that quishing is designed to move you away from corporate security and onto your personal device. Stay alert and use your new settings to keep the control in your hands.

Scenario: The HR Email

You receive an email from 'HR' about a mandatory benefit update. It has no text, just a large QR code and a request to scan for authentication. What is your next move? Not quite. Attackers use 'HR' and 'Urgency' to trick you. Scanning directly bypasses your computer's security. Look at the red flags: no text and a request for authentication. Exactly right! This is a classic quishing attempt. The lack of text and the request for authentication via QR are major red flags. Reporting protects you and the whole company. While verifying is better than scanning blindly, this specific scenario is too high-risk. QR codes used for authentication are a primary vector for stealing MFA tokens. Reporting is the safest path.