We’ve all scanned a QR code and thought nothing of it. I mean why would we? They’ve been around for years. They became popular during the COVID pandemic when we had to scan them to go pretty much anywhere.
So why should we be cautious now?
Well, scanning or clicking anything nowadays is a risk. However, the simple nature of QR codes allows them to be exploited by cybercriminals.
This blog looks into the hidden dangers of QR codes, what to look out for, and how to mitigate the risks of these ‘randomly dispersed pixels in a square’.
The Risks
The FBI has recently issued a new warning about QR code scams as they see more and more thieves using fake QR codes to misdirect payments and steal important information.
QR codes are quick and convenient, but their simplicity can make them a target for digital threats. Cybercriminals can manipulate QR codes to direct users to malicious websites, initiate unwanted downloads, or even hijack personal information. These risks are heightened by the fact that once scanned, the action is usually automatic, giving the user little time to reconsider the potential danger.
How QR Codes Can Be Exploited
Phishing Attacks – By encoding a malicious URL into a QR code, attackers can create phishing sites that mimic legitimate websites, tricking users into entering sensitive data such as login credentials or financial information.
Malware Distribution – QR codes can be used to trigger the download of malware that can compromise the device used to scan the code, leading to data theft or ransomware.
Device Manipulation – Some QR codes contain commands that can alter settings on a device or trigger functions unknown to the user.
Misleading Promotions – Cybercriminals can use a QR code to promote fraudulent or misleading offers that may lead to financial scams.
Signs of a Malicious QR Code
Unknown Source – Always be wary of a QR code from unknown or unsolicited sources. If you don’t trust where it’s coming from, don’t scan it.
Lack of Transparency – Legitimate QR codes, especially in marketing, often come with an explanation of what they link to. If it offers no clear indication of its destination, it may be suspect.
Location of the QR Code – A QR code placed in an unusual or unexpected location should raise red flags. Be particularly cautious of stickers placed over other materials or ones that appear in low-traffic areas.
Mitigating the Risks
Use a Secure QR Code Scanner – Some apps check the URL before accessing it, providing an added layer of security. Look for reputable QR code scanners that offer this feature.
Verify the Source – If possible, confirm the origin of the code with the issuing organisation, especially if it leads to payments or personal information.
Keep Your Devices Secure – Ensure your mobile devices are equipped with up-to-date antivirus software and that your security settings are on and up-to-date too.
Educate and Inform – Awareness is one of the most effective defences against cyber threats. Ensure that you, your friends, family and business are aware of the potential risks associated with QR codes and know how to handle them safely.
While QR codes are a model of modern efficiency and connectivity, they are not without their risks. By understanding the potential threats and exercising due caution, we can continue to use this technology safely and effectively.
Embrace the benefits of QR codes while safeguarding against their hidden dangers.
If you want to learn more about the impacts of cybersecurity, or need support in improving your security approach, get in contact with our team today. We have a dedicated cybersecurity practice with an accredited team of cybersecurity experts. Our team are here to provide end-to-end cybersecurity services and 24×7 monitoring to keep your people and business secure from the complex threat landscape.