Work safely with QR codes: How to prevent risks

QR codes have become common means of digital communication. They allow us to quickly access websites, download apps or share data. However, their convenience and widespread use also brings risks.

In order to minimize the misuse of QR codes, it is important to follow some security recommendations.

Verify the QR code source

Never scan QR codes from unknown or untrusted sources. Cybercriminals often embed fake QR codes in public places or replace legitimate QR codes with fraudulent ones. Before scanning, make sure the QR code comes from a verified source, such as an official website, an email from a trusted organisation or printed material from a verified provider.

Use scanning apps with security features

Some QR code scanning apps offer additional features, such as checking the URL before opening it. These apps will warn you if a QR code directs you to a potentially dangerous website or contains suspicious content.

Check the URL carefully

After scanning the QR code, check the URL that is displayed. If the address seems suspicious, do not open it. Focus on:

• Domain: Verify that the domain belongs to a legitimate organisation.

• HTTPS: Make sure the address starts with “https”, which indicates encrypted transmission.

• Strange characters: If the URL contains unusual characters or unclear text, do not open it.
  
  

Do not provide sensitive data

QR codes should not ask for sensitive data such as login details, passwords, payment card number or personal data. If the QR code redirects you to a form that asks for this information, be cautious. It is probably a phishing attempt.

Protect your device

Make sure your device is protected:

• Software updates: Regularly update your operating system and applications to keep them secure against the latest threats.

• Antivirus software: Use a trusted antivirus that can detect and block fraudulent websites or apps.
  
  

Avoid public Wi-Fi networks

If you are going to use a QR code to access sensitive information, avoid using unsecured public Wi-Fi networks. These can often be monitored by cybercriminals.

Check the physical integrity of the QR code

In public places, make sure that the QR code has not been tampered with. Overlapping the original QR code with a new stick-on code, for example, can be suspicious.

QR codes are a handy tool that makes it easier for us to access information. However, using them incorrectly can lead to security incidents such as data theft or malware infecting the device. You can minimise risks and safely enjoy the benefits of this technology by following simple safety rules.