QR Code Security: Are QR Codes Safe to Use?
With the number of QR code users in the US reaching 11 million, questions about their security have arisen. As the demand for QR codes grows, many users remain skeptical about their safety features. In the post-pandemic world, QR codes are widely used in various sectors.
However, as QR codes became mainstream, security threats emerged. To better understand the safety of QR codes, it is essential to follow some tips and recommendations. This way, you can protect yourself from potential threats the next time you encounter a QR code.
How Safe Are QR Codes?
In theory and practice, QR codes are considered safe. However, nowadays, misuse can lead to threats. There are two types of QR codes: static and dynamic.
- Static QR Codes, created using free generators, allow one-time QR code creation. This type of QR code poses a lesser threat as it cannot be edited and is often used to quickly create digital business cards.
- Dynamic QR Codes allow users to create and edit content without needing to generate a new QR code. This type can be potentially dangerous, but since generators require account login, only the user has access to change the data within the dynamic QR code.
QR Code Security Risks
Although QR codes provide fast and secure information exchange, they can pose certain risks. Cybersecurity experts strive to inform the public about the dangers associated with QR codes. They highlight three main risks:
- Phishing – one of the most common data theft methods used by cyber hackers. The integration of QR code technology into our daily lives has made them a tool for phishing, or "QRishing." Users can unknowingly disclose personal information such as names, birthdates, addresses, and banking details, leading to theft from their accounts.
- Spread of Malware – cyber hackers can use QR codes to expedite the spread of malicious software. Scanning an unidentified QR code may automatically download a malicious application to the device.
- Suspicious Catalog Sites – fraudsters can use QR codes to deceive users into paying fake bills or promising prizes. This type of fraud is widespread in China and other countries where QR codes are popular.
Best Practices for Enhancing QR Code Security
QR codes can be dangerous if mishandled, but knowing their specifics can enhance the security of your QR codes and your audience. Experts recommend the following measures:
- Check Placement: Ensure the QR code is not counterfeit or misplaced. In case of doubt, contact reliable operators.
- Evaluate URL Safety: Before scanning, make sure the URL is safe. Use online services to check domains and SSL certificates.
- Be Cautious with Shortened Links: Be wary of shortened URLs like bit.ly. Check click statistics to determine the legitimacy of the link.
- Avoid Entering Personal Information on Suspicious Sites: Thoroughly verify website certifications before entering personal information.
- Use Security Scanner Apps: Install trusted applications to protect your devices from data breaches.
How QR Codes Enhance Information Security
Modern applications and websites using QR codes can improve information security. Examples include:
- Two-Factor Authentication – Using QR codes for login invitations ensures secure data exchange.
- Banking and Payment Transactions – Banks and online payment services integrate QR codes to safeguard clients' funds, increasing user trust.
These measures make QR codes an important tool in combating data and identity theft.