How to Spot QR Code Scams: Protecting Yourself from Quishing

Cybercriminals are increasingly leveraging QR codes to execute phishing attacks, a tactic known as quishing. This method bypasses traditional security measures, including multi-factor authentication (MFA), granting attackers access to user accounts. According to a Hoxhunt report, such attacks have surged by 25% over the past year, with threat actors embedding malicious QR codes in emails, PDFs, and even physical media like posters and business cards.

The attack mechanism is straightforward: victims receive an email containing a QR code allegedly linking to a bank, social media, or corporate platform. After scanning the code, users are redirected to a fake website where they enter their credentials. Attackers then intercept this data to gain account access, steal information, or launch further attacks. The risk is amplified by the fact that QR codes are often scanned on mobile devices, allowing threat actors to bypass network-based security systems.

Microsoft experts note that the share of phishing campaigns using QR codes has risen from 10% to 30% in recent months. Google also warns of a surge in 'adversary-in-the-middle' (AITM) attacks, where quishing masks malicious links. To mitigate these threats, users should verify QR code sources, avoid scanning unverified codes, and use official company apps instead of following links from emails.

Quishing isn’t limited to digital channels—attackers place malicious QR codes on posters, billboards, and even business cards. Therefore, vigilance is critical not only in the online realm but also in real-world scenarios. If you receive a QR code from a bank or organization, access their official website directly or use a verified mobile app.