What is Quishing? Risks of QR Code Phishing and How to Protect Your Data

As digital transformation accelerates, so do the methods of cybercriminals. The Personal Data Protection Authority (KVKK) issued a critical announcement on February 26, 2026, warning users and organizations about a rising threat: “Quishing” (QR Phishing).

At Esenyel Partners, we have summarized the key aspects of this threat and the necessary precautions to safeguard your personal and corporate data.

Understanding Quishing: The Invisible Threat

The term “Quishing” is a blend of “Quick Response” (QR) and “Phishing”. It refers to a social engineering attack where cybercriminals use fraudulent or tampered QR codes to redirect victims to malicious websites.

Unlike traditional phishing links, QR codes are opaque, the human eye cannot distinguish a safe link from a malicious one. These attacks aim to:

• Steal banking and login credentials.
• Deploy malware or spyware onto mobile devices.
• Commit identity theft via sophisticated spoofing pages.

Global Impact and Tactics

Quishing is no longer a theoretical risk. According to the UK’s “Action Fraud” authorities, between April 2024 and April 2025, 784 Quishing incidents were reported, resulting in approximately £3.5 million in losses.

Common tactics include:

• Psychological Manipulation: Exploiting the user’s quick action reflex to bypass critical thinking.
• Physical Tampering: Placing fake QR stickers over legitimate ones on parking meters, restaurant menus, or public advertisements.
• Digital Deception: Sending fake QR codes via email or SMS, often disguised as “urgent payment” or “shipping tracking” notifications.

How to Protect Yourself: Key Recommendations

Based on the KVKK guidelines, here are the essential steps to mitigate Quishing risks:

For Individuals

• Enable Multi-Factor Authentication (MFA): Always use MFA to add an extra layer of security beyond passwords.
• Update Your OS: Keep your mobile operating system and browser updated to benefit from the latest security patches.
• Verify the Source: Inspect physical QR codes. Avoid scanning if they look like stickers added later or if the material seems tampered with.
• Inspect the URL: After scanning, check the preview link. Ensure it uses the HTTPS protocol and look for typos or unusual characters in the domain name.

For Organizations

• Incident Response: Develop a rapid isolation and evidence preservation protocol for potential security breaches.
• Standardize QR Policies: Establish clear corporate policies for QR code usage in payment and communication processes.
• Physical Audits: Regularly inspect QR codes in physical business locations to ensure they have not been replaced by attackers.

You can access the full text of the announcement via the following link:
[Risks Posed by QR Codes: Quishing]

Conclusion

Understanding the risks associated with emerging technologies is the first step toward a secure digital future. At Esenyel Partners, we are dedicated to providing you with the strategic legal and technical insights needed to navigate the evolving landscape of data protection.

Esenyel Partners is ready to inform and support you in all your data security and compliance needs.