If you’re generating d.cscan.com QR codes
When an email gateway receives an image with a QR code, advanced scanners (OCR capabilities) extract the URL. If the URL points to a risky domain, the gateway may rewrite the QR code's embedded URL to route through d.cscan.com for verification, effectively "patching" the malicious QR code before it reaches the user's inbox. d.cscan.com qr code