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QR Code Security: How Safe Is It to Use Them in 2025?

With the growing popularity of QR codes in the U.S. and around the world, their security has become an increasingly relevant topic. More than 11 million users actively scan QR codes, and while the technology seems convenient, it’s not without risks. In the post-pandemic era, QR codes are used everywhere — from restaurant menus to banking transactions. But with this rise in use came cyber threats.

Are QR Codes Safe?

Technically, QR codes are safe, which is why they’re often used in digital business cards. However, it all depends on who creates them and for what purpose. There are two main types of QR codes:

  • Static QR codes — generated once and cannot be changed. Since they can’t be edited after creation, they’re more secure.

  • Dynamic QR codes — allow you to edit the content even after printing. These are more flexible but also more vulnerable. Fortunately, only the account owner in the QR code generator platform can modify them.

Main Threats When Using QR Codes

Despite their convenience, hackers have found ways to exploit QR codes in fraudulent schemes. Here are the main risks:

1. Phishing (QRishing)

Hackers place malicious QR codes that lead to fake login pages — like for “banking” or “delivery” services. Once the user enters personal data (name, login, bank credentials), it’s immediately captured by attackers.

2. Malware Distribution

Some QR codes automatically initiate app downloads containing malware. Android devices are particularly vulnerable due to more open system permissions and lack of pre-installed security.

3. Fake Websites and Payments

A popular scam in China — a user scans a QR code to pay for a service, but the money goes to scammers. This type of fraud has spread globally. In 2019, thousands of euros were stolen from users in the Netherlands using this method.

How to Protect Yourself When Using QR Codes

Here are 5 tips to reduce the risks:

  1. Check Physical Placement of the QR Code
    If the code looks suspicious or is placed over another one — don’t scan it.

  2. Check the URL
    Make sure the website uses https:// and verify the SSL certificate (padlock icon in the browser bar).

  3. Avoid Shortened URLs (bit.ly, etc.)
    Don’t follow shortened links without verifying them first. Add “+” to the end of a bit.ly link to preview the original URL.

  4. Never Enter Personal Info on Unknown Sites
    Even if the page looks legitimate (like your bank’s site) — double-check the address manually.

  5. Use QR Code Scanner Apps with Security Features
    Install apps that scan QR code content before opening the link to block threats in advance.

QR Codes as a Security Tool

Not everything is negative — QR codes are also used to enhance security. Here’s how:

Two-Factor Authentication

Many banking and cloud services use QR codes for 2FA login. It adds a second layer of protection and ensures secure access.

Payments and Transactions

Banks now use QR codes for secure transfers and payments. The technology encrypts transaction data, reducing fraud risks.

Conclusion

QR codes are fast, convenient, and smart. But to stay safe, it’s crucial to remain alert: avoid scanning suspicious codes, check URLs, and use trusted tools. Security is in your hands.