QR code security: how to create and scan with more confidence
QR codes hide their destination until decoded. Good account security, clear labels and visible confirmation reduce that uncertainty.
A QR code is not inherently dangerous, but it can hide a malicious or replaced destination. Creators should secure the account controlling dynamic redirects, use HTTPS and label the expected destination. Scanners should inspect the previewed domain before opening it and avoid entering credentials after an unexpected scan.
Understand the main risks
The most common risk is social rather than technical: a person trusts a code without knowing where it leads. A sticker can be placed over a legitimate restaurant or parking code. A compromised dynamic account can also redirect an unchanged printed code to a new destination.
A QR can contain a website, Wi-Fi configuration, contact details or prepared message. The scanner should display what it decoded and require confirmation before taking sensitive actions. GoQR’s image reader follows that principle and does not automatically open a detected link.
Make legitimate codes easier to trust
Place the organisation name and purpose next to the code. “Scan to view today’s menu on restaurant.example” is safer and clearer than “Scan me”. Use a domain people recognise, and keep the landing page visually consistent with the sign or packaging.
Avoid shortened destinations you do not control for long-term print. With a dynamic platform, make sure you understand who owns the account and what happens if access is lost.
- ✓Use HTTPS destinations.
- ✓State the expected domain beside the code.
- ✓Use a unique password for the QR account.
- ✓Remove access for people who no longer manage the campaign.
- ✓Review active destinations periodically.
Check before opening
Modern camera apps normally show a preview of the domain. Read it before tapping, especially on payment, parking, delivery and login codes. Look for misspellings, unexpected subdomains or a domain unrelated to the physical location.
A padlock only confirms an encrypted connection to that domain. It does not prove that the operator is honest. If a scan unexpectedly asks for a password, payment card or software installation, close it and navigate to the organisation through a trusted route.
Respond to a suspected replacement
If a physical code appears covered by another sticker, do not use it. Photograph the placement and notify the venue or owner. If you manage the code, pause the redirect if possible, inspect account access and replace compromised material.
For large deployments, keep an inventory of locations and short codes. Periodic physical checks are especially important where anonymous visitors can reach the sign.
Practical next step
Scan your own public materials as a visitor would. Confirm that the previewed domain, page branding and requested action all match the explanation beside the code.
Inspect a QR image safely ↗