Don’t Scan That QR Code! It Could Be a Trap

Psynce Technologies ADV
3 min readMay 18, 2023

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Image Source : AI

What is a malicious QR code attack?

A malicious QR code attack is a type of cyberattack that uses a QR code to trick users into taking an action that is harmful to their device or data. QR codes are two-dimensional barcodes that can be scanned by smartphones and other mobile devices. They are often used to quickly access websites, open apps, or share information. However, QR codes can also be used to deliver malware, steal personal information, or redirect users to malicious websites.

How do malicious QR code attacks work?

There are a few different ways that malicious QR codes can be used to attack users. One common attack involves placing a malicious QR code in a public place, such as a store, restaurant, or airport. When unsuspecting users scan the code, they are taken to a malicious website that can infect their device with malware. Malware can steal personal information, such as passwords and credit card numbers, or it can be used to take control of the device.

Another way that malicious QR codes can be used to attack users is by embedding them in phishing emails or text messages. When users click on the link in the email or text message, they are taken to a malicious website that looks like a legitimate website. The website then asks the user to enter their login credentials or other personal information. Once the user enters their information, it is sent to the attacker.

Malicious QR codes can also be used to redirect users to malicious websites. This can be done by placing a malicious QR code on a website or in an app. When users scan the code, they are taken to the malicious website. The website can then steal personal information or install malware on the user’s device.

How can I protect myself from malicious QR code attacks?

There are a few things that users can do to protect themselves from malicious QR code attacks. One way to protect yourself is to only scan QR codes that you trust. If you are not sure if a QR code is legitimate, do not scan it. Another way to protect yourself is to use a security app that can scan QR codes for malware. Finally, keep your device’s software up to date. Software updates often include security patches that can help to protect your device from malware.

Here are some additional tips to help you protect yourself from malicious QR code attacks:

Be suspicious of QR codes that are sent to you via email or text message.
Only scan QR codes that are from trusted sources.
Use a security app that can scan QR codes for malware.
Keep your device’s software up to date.
If you are unsure whether a QR code is safe, do not scan it.

By following these tips, you can help to protect yourself from malicious QR code attacks.

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