GUIDE深度 · Deep dive

QR Scanning Safety

A QR code just encodes a string and is not trustworthy by itself. Check the domain/protocol before opening, never enter passwords or codes on unknown pages, and treat public parking/reward codes as potential phishing.

更新 2026-10-31 · 公式可核验

Is the domain official?

Is it http(s), not an odd protocol?

Expand/preview short links.

Do not enter passwords/codes on unknown pages.

Do not grant contacts/photos permissions blindly.

FAQ

Can a QR carry malware?

The code itself cannot; the link/file it points to might.

Can I scan public codes?

You can scan, but inspect the content before opening/paying.

Sources

Related calculators

QR Code ScannerUpload a QR image or scan with the camera, decode locally with jsQR, copy the content or open a link.

More guides

Why a QR Code Will Not ScanRead guide