Quishing Alert: Defend Yourself Against the Latest QR Code Phishing Scams

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As we navigate the digital world with an ever-increasing reliance on technology, the convenience of QR codes has become a staple in our everyday lives. But have you ever stopped to consider the security implications of these handy little squares?

Welcome to the world of Quishing, a cyber threat that employs QR codes to lure unsuspecting victims into phishing scams, putting sensitive information at risk. Understanding this rising threat is the first step to ensuring your digital safety.

Key Takeaways – Quishing Scams

  • Quishing attacks, a form of phishing using QR codes, are on the rise due to their deceptive nature and the increasing use of QR codes in everyday life, often leading users to malicious sites where personal data can be stolen.

  • Mitigating quishing threats involves user vigilance and organisational safeguards, including security awareness training, using multifactor authentication, and maintaining good digital hygiene to protect against security breaches.

  • Regularly updating software and security patches, staying informed about new quishing tactics, and employing advanced security measures like Extended Detection and Response (XDR) systems are critical for defending against the evolving threats of QR code phishing.

Decoding Quishing: The QR Code Threat Landscape

A smartphone scanning a QR code

Quishing, a cyber threat, is deceptively simple yet devastatingly effective. The term is a fusion of ‘QR’ (Quick Response) and ‘phishing’, and as the name suggests, it involves the use of QR codes in various phishing emails and scams.

The malicious QR code appears genuine, but upon scanning, it redirects the user to a fraudulent website. Cybercriminals are seising on the widespread adoption and convenience QR codes offer to exploit them through phishing campaigns, leading to a surge in quishing attacks.

The rise of QR codes in our daily lives has been nothing short of meteoric. From making payments to accessing restaurant menus, these quick response codes have become ubiquitous. Unfortunately, this widespread use of quick response code also makes them an attractive tool for cybercriminals. The surge in quishing attacks is a testament to their effectiveness and the difficulty in detecting them.

Understanding QR Codes and Their Uses

QR codes are two-dimensional barcodes designed to store significant amounts of data. They can be easily scanned by smartphones or barcode scanners, making them a popular choice for both legitimate and malicious purposes.

The surge in QR code usage can be attributed to the numerous advantages they offer, such as their capacity to store large amounts of valuable data, and the ability to scan them from both digital screens and physical surfaces. By using QR codes, businesses and individuals can easily access and share information in a convenient and efficient manner.

Given their convenience and functionality, 59% of individuals foresee QR codes as a permanent aspect of future phone use. In fact, it is estimated that by 2025, a staggering 99.5 million U.S. users will utilise their smartphones to scan QR codes. As our reliance on these handy codes grows, so does the potential for misuse by cybercriminals.

The Surge of QR Code Usage in Phishing Scams

A hacker creating a fake QR code for a qushing attack

Cybercriminals increasingly use QR codes in phishing attacks due to their effectiveness and detection challenges. The rise of quishing has been accelerated by the widespread use of QR codes, particularly during the COVID-19 pandemic when QR codes were adopted by more legitimate organisations for low-contact transactions.

One prevalent quishing scam involves the placement of fraudulent QR codes on parking meters, deceiving drivers into sharing their financial credentials when attempting to pay for parking. The implications of such scams are far-reaching, impacting both individual consumers and enterprises, along with their employees.

Anatomy of a Quishing Attack

At its core, a quishing attack is a game of deception. It leverages fake QR codes that are designed to appear authentic, leading users to scan them without raising suspicion. The immediate consequences of scanning a quishing attack’s QR code are grave. The victim is redirected to a phishing website, which is essentially a phishing attack, where they may be prompted to enter sensitive information that can be stolen.

The stealthy nature of quishing attacks contributes to their success. They are difficult to detect due to the ease of creating new QR codes which are unlikely to be recognised or reused by security filters. This makes quishing a formidable threat in the rapidly evolving cyber threat landscape.

The Lure: Crafting Convincing Malicious QR Codes

Creating a convincing malicious QR code is fundamental to a successful quishing attack. Cybercriminals use tools such as QRGen to generate QR codes with customised payloads. These malicious QR codes are often disguised to appear legitimate, employing tactics such as overlaying a legitimate QR code or utilising counterfeit QR codes that resemble legitimate ones.

Scammers employ various tactics to make their malicious QR codes appear legitimate. These may involve substituting authentic QR codes with counterfeit ones that lead users to phishing sites or initiating harmful actions. The end goal is to deceive users into disclosing sensitive banking or payment details or personal information.

The Hook: Redirecting to Fraudulent Websites

A user being redirected to a fraudulent quishing website

The hook phase of a quishing attack starts when the victim scans the malicious QR code. Victims are redirected to counterfeit websites designed to steal personal data or infect devices with malware. Cybercriminals craft fraudulent websites for QR code phishing attacks by generating a fake website with QR codes that appear authentic and strategically placing them in public areas.

Instances of counterfeit websites utilised in QR code phishing attacks encompass:

  • Fake QR code parking meters scams

  • Counterfeit apps

  • Phishing websites

  • Websites that mimic coupons or discounts for popular products or services

The primary objective of QR phishing is to compel a user to transition from a desktop or laptop to a mobile device, potentially with less robust antiphishing protections, by utilising QR codes in phishing attacks, and to download malware, or extract personal information.

Protect yourself from Parking App scams, read our informative article

The Real-World Consequences of Falling for Quishing

Falling for quishing attacks can lead to far from trivial consequences. Victims of quishing emails may face severe issues such as identity theft, substantial financial loss, and unauthorised entry into personal accounts. Scanning a malicious QR code can lead to users being directed to a fraudulent website aimed at gathering personal information, such as login credentials and credit card numbers.

The financial ramifications of quishing attacks can be substantial, as evidenced by the average cost of a data breach caused by phishing being $4.91 million. Furthermore, almost one-third of companies have experienced monetary losses directly attributable to these attacks.

From Personal Data to Bank Accounts: A Spectrum of Threats

A range of personal and financial information at risk for a quishing attack

A wide range of personal and financial data can be targeted by quishing campaigns. From names and addresses to sensitive financial information, these attacks pose a significant threat to the security of individuals and businesses alike. The potential risks that individuals may encounter as a result of quishing attacks include:

  • Identity theft

  • Financial repercussions

  • Unauthorised entry into personal accounts

  • Malware infections

  • Exposure of personal information

For businesses, the implications of quishing attacks can be even more severe. Business quishing attacks include:

  • Data breaches

  • Compromised credentials

  • Substantial financial losses

  • Reputational damage

  • Theft of proprietary data

  • Disruptions to normal business operations

The threat of quishing is not to be underestimated.

Qushing Examples

  1. Fake Wi-Fi Access Points
    • Attackers set up a malicious QR code that purported to offer free Wi-Fi access in a public area. When scanned, the QR code installed malware on the user’s device.
  2. Fraudulent Payment QR Codes
    • Where scammers replaced legitimate payment QR codes in restaurants or retail stores with their own. When customers scanned these codes, they were directed to a fraudulent payment page, leading to financial theft.
  3. Phishing Websites and Data Harvesting
    • Where users were tricked into scanning a QR code that led to a phishing website, resembling a legitimate service, prompting them to enter personal information or login credentials.
  4. Social Engineering Scams
    • QR codes can be used in a social engineering scam, such as a fake promotional campaign, where scanning the QR code subscribed victims to expensive services or shared their personal data without consent.

Case Studies: When Quishing Strikes

The potential severity of quishing scams is starkly illustrated by real-life examples. From pay-to-park scams to email-based schemes and cryptocurrency fraud, quishing attacks come in various forms, each with its unique set of tactics and objectives.

In the pay-to-park quishing scam, victims are deceived through the use of QR codes sent by unauthorised advertisers who exploit parking app promotions. Individuals unknowingly scan these codes, thinking they are accessing a genuine service, but end up initiating recurring payments to illegitimate payment accounts.

Other notorious email-based phishing mail scams include deceptive messages about account deactivation, credit card compromise, and fund transfer requests, all designed to entice individuals into interacting with malicious software and QR codes.

Protect yourself from WhatsApp scams, read our informative Blogpost and learn how to protect yourself.

Proactive Measures to Shield Against QR Code Phishing

Despite the significant threat posed by quishing, individuals and organisations can take measures to protect against it. A well-informed user base plays a crucial role in defending against quishing attacks as informed user scans are better equipped to identify malicious QR codes and refrain from scanning them.

Individuals can safeguard themselves by:

  • Exercising caution when scanning QR codes

  • Authenticating the source

  • Ensuring the authenticity prior to scanning any QR code received via emails, flyers, letters, or social media.

Organisations, on the other hand, can provide security awareness training, which encompasses QR code specific education, to assist individuals in identifying and avoiding quishing attempts.

Vigilance is Key: Tips for Users

A user staying alert while scanning a QR code, woman concerned of becoming a victim of a Quishing attack

Preventing quishing attacks greatly relies on user vigilance. It’s important to remember that while QR codes offer convenience, they can also pose a threat to security if not handled with caution. By being aware of the potential risks and taking steps to mitigate them, users can protect themselves from falling victim to quishing attacks.

Best practices when scanning QR codes include:

  • Ensuring the webpage is SSL-certified

    (genuine security certificate)
  • Opting for QR password protection

  • Inspecting the QR code URL closely

  • Looking for physical tampering signs

  • Avoiding downloading apps directly from QR codes.

Organisational Safeguards: Policies and Technologies

Preventing quishing attacks is a significant responsibility of organisations. By establishing policies and employing technologies aimed at detecting and preventing quishing attacks, they can protect their employees and customers from falling victim to these scams.

Some recommended best practices for employee training to mitigate phishing attacks include:

  • Conducting regular workshops or training sessions that actively involve employees

  • Educating employees about phishing attacks and promoting vigilance

  • Using strong passwords and two-factor authentication

  • Providing security awareness training

  • Being on the lookout for phishing scams

  • Conducting ongoing phishing simulations

  • Taking down spoofed websites

Strengthening Defences with Multifactor Authentication

Multifactor authentication (MFA) is a powerful tool in combating quishing. MFA is a security measure designed to restrict access to accounts and applications to authorised users only. It functions by requiring multiple forms of verification before granting access.

The various types of multifactor authentication methods include:

  • Hardware OTP tokens

  • Standalone OTP mobile applications

  • Soft token Software Development Kits (SDKs)

  • SMS-based authentication

  • Microsoft Authenticator (Push)

  • Microsoft Authenticator (Passwordless)

Multifactor authentication can mitigate the impact of compromised credentials in phishing attacks by adding an extra layer of security beyond just passwords, making it more difficult for attackers to gain unauthorised access and manipulate users.

Digital Hygiene: Best Practices to Combat Quishing

Maintaining good digital hygiene is crucial in combating quishing. This entails embracing a security-focused mindset and practices aimed at reducing the risk of online data breaches. Digital hygiene can aid in the prevention of Quishing through the implementation of strategies such as:

  • Enabling multifactor authentication (MFA)

  • Encrypting data

  • Using strong authentication methods

  • Remaining vigilant against phishing attempts

Recommended best practices for maintaining digital hygiene to mitigate Quishing attacks include:

  • Utilising strong passwords and multi-factor authentication (MFA)

  • Practicing good password hygiene

  • Integrating security automation and orchestration

  • Safeguarding digital identity information

  • Employing data and identity protection software

  • Establishing a cyber hygiene policy.

Recognising Suspicious Activity

Staying safe online requires the ability to recognise suspicious activity. As quishing attacks become more sophisticated, so too must our ability to identify them. This involves being aware of the typical strategies employed in QR code phishing scams.

It’s important to thoroughly verify the origin of the QR code prior to scanning, particularly if it is in a public location or from an unfamiliar sender. Look out for indications of tampering, such as the presence of a sticker placed over the original code. It’s also recommended to utilise a QR code reader that displays the decoded text before accessing the site and cross-checks it against a database of malicious links.

Regular Updates and Security Patches

Keeping your devices and software up-to-date with the latest security patches is essential to protect against known vulnerabilities exploited in quishing attacks. Software updates and security patches contribute to the enhancement of device security against QR code phishing by addressing vulnerabilities and weaknesses in the software.

Automatic updates play a crucial role in ensuring that the device consistently operates on the most recent software, which includes essential security patches to defend against quishing attacks. It’s advisable to perform software and device updates whenever new updates are released. Setting all software across all devices to update automatically is also recommended.

Navigating the Evolving Threatscape: Staying Informed

Staying informed is key in an ever-evolving cyber threat landscape. Recent observations indicate a significant increase in QR code phishing, with a reported 51% increase in September. Furthermore, it has been noted that 17% of attacks bypassing spam filters utilise QR codes.

Cyber attackers are exploiting QR codes to execute advanced phishing attacks and obtain confidential information, underscoring the importance of implementing strong security measures. Recent developments in defensive measures, such as the implementation of good end point security solutions for your computer or smart device should be utilised to counter QR code phishing, offering a more in-depth defence.

Identify the most common types of cyber threats, read our informative blogpost and protect yourself from cyber criminals.


In conclusion, while QR codes have brought convenience and efficiency to our lives, they have also opened a new avenue for cybercriminals to exploit. Falling victim to a quishing attack can have severe consequences, from identity theft to significant financial loss.

However, by staying informed about the evolving threat landscape, implementing robust security measures such as multifactor authentication, maintaining good digital hygiene, and being vigilant when scanning QR codes, individuals and organisations can protect themselves against quishing.

Frequently Asked Questions

What is quishing?

Quishing is a type of phishing attack that uses QR codes to deceive people into visiting a malicious website or downloading a virus-filled document. It aims to steal sensitive information such as bank account credentials.

What do you mean by phishing?

Phishing is a type of social engineering attack used to steal user data by tricking them into believing they are interacting with a trusted entity through fake emails, texts, or other text messages themselves. It aims to acquire sensitive information, install malware, and gain access to financial details.

Why is it called phishing?

The term “phishing” is believed to be influenced by the word “fishing” as it involves “fishing” for sensitive data or information from a group of users, and hackers initially used the term “phreaks.”

Which is a phishing attack?

A phishing attack is when attackers try to trick users into clicking on a malicious link, text message or visiting a harmful website to steal their information and compromise their security. Be cautious and skeptical of unexpected or suspicious messages and links.

How can I identify a malicious QR code?

To identify a malicious QR code, verify the origin of the code before scanning and look for signs of tampering, such as a sticker placed over the original code. Always exercise caution when scanning QR codes.

Does quishing work?

Quishing attacks, which involve the use of QR codes to trick individuals into revealing sensitive information or downloading malicious software, can be effective. These attacks exploit the convenience and growing popularity of QR codes. Users often scan QR codes without suspicion, making it easier for attackers to direct them to fraudulent websites or initiate unwanted actions on their devices. The effectiveness of quishing lies in its ability to bypass traditional caution exercised with links or attachments in emails, as people are less vigilant about the potential risks of scanning QR codes. Always be cautious and verify the source before scanning QR codes.

How to prevent Quishing attack?

To prevent Quishing (SMS-based phishing) attacks, follow these steps:

Be Skeptical of Unsolicited Messages: Treat unexpected SMS messages with caution, especially those asking for personal information.

Don’t Click on Suspicious Links: Avoid clicking on links in text messages from unknown sources or that seem out of character from known contacts.

Verify the Source: If a message claims to be from a reputable organisation, verify it by contacting the organization directly through official channels

Use Two-Factor Authentication: Enable two-factor authentication on accounts to add an extra layer of security.

Keep Software Updated: Regularly update your phone’s operating system and apps to ensure the latest security features are active.

Educate Yourself and Others: Stay informed about the latest quishing tactics and educate family and friends about the risks.

Report Suspicious Messages: Report any quishing attempts to your mobile carrier or relevant authorities.

What happens if you scan a malicious QR code?

A malicious QR code can lead to various security risks such as data theft, phishing attacks, malware installation, or unauthorised access to your device or personal information. It is important to be cautious when scanning QR codes, especially from unknown sources, and to use a reliable QR code scanner that can detect and warn about potential threats.

How does QR code phishing work?

QR code phishing is a technique where cybercriminals create and distribute malicious QR codes. These codes, when scanned with a smartphone or QR code reader, redirect users to fake websites or prompt them to download malicious software. These fraudulent websites or downloads are designed to steal personal information, such as login credentials or financial details, from unsuspecting users. It is important to exercise caution when scanning QR codes from unknown sources to avoid falling victim to phishing attacks.

What is an example of quishing in social engineering?

Quishing, a form of social engineering, that involves the use of a smart phone camera to trick individuals into revealing sensitive information. For example placing a bogus QR Code on a bar table so customers use thier smart phone camera to order drinks and food. The legitimate QR code is replaced with a fake QR code which sends the customer to a bogus website, where they may be asked to make a purchase.

Useful External Reference Websites

  1. National Cyber Security Centre (NCSC)
    • Description: The NCSC is part of the UK Government and provides advice and support for the public and private sector in how to avoid computer security threats.
    • LinkNational Cyber Security Centre
  2. Action Fraud
    • Description: Action Fraud is the UK’s national reporting centre for fraud and cybercrime. They provide information on different types of scams, including those involving QR codes.
    • LinkAction Fraud
  3. Which?
    • Description: Which? is a UK-based consumer advice organization. They offer guidance on a wide range of consumer issues, including scams and digital security.
    • LinkWhich?
  4. Financial Conduct Authority (FCA)
    • Description: The FCA regulates the financial services industry in the UK. They provide alerts and warnings about financial scams, including those involving digital technologies.
    • LinkFinancial Conduct Authority
  5. Citizens Advice
    • Description: Citizens Advice offers free, confidential information and advice to assist people with legal, financial, and other problems, including scams and fraud.
    • LinkCitizens Advice
  6. BBC Watchdog
    • Description: BBC Watchdog is a consumer rights program that investigates viewers’ reports of problematic experiences with traders, retailers, and other companies.
    • LinkBBC Watchdog
  7. The Guardian – Technology Section
    • Description: The Guardian’s technology section covers the latest in tech news, including cybersecurity and scam alerts.
    • LinkThe Guardian – Technology
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With over three decades of experience in the heart of London’s financial sector, I have dedicated my career to the pursuit of robust cybersecurity practices and IT leadership. As a Certified Information Systems Security Professional (CISSP), Certified Information Security Manager (CISM), Certified Chief Information Security Officer (C|CISO), Certified Ethical Hacker (CEH), and Computer Hacking Forensic Investigator (CHFI), I bring a wealth of knowledge and expertise to the table.

My journey in the field of cybersecurity has not only been about personal growth but also about sharing my insights with others. As an international speaker, I have had the privilege of addressing audiences worldwide, discussing the importance of cybersecurity in today’s digital age. My passion for knowledge sharing extends to my work as an author and blogger, where I delve into the complexities of cybersecurity, offering practical advice and thought leadership.

In my role as a CISO and Head of IT, I have overseen the development and implementation of comprehensive information security and IT strategies. My focus has always been on creating resilient systems capable of withstanding the evolving landscape of cyber threats.

My Master’s degree in Cybersecurity has provided a solid academic foundation, which, when combined with my practical experience, allows me to approach cybersecurity from a holistic perspective.

I am always open to connecting with other professionals in the field, sharing knowledge, and exploring new opportunities. Let’s secure the digital world together.