There are two different scans, they are;
1- QR reading with barcode with camera
2- Reading QR image with Barcode selected from gallery (only)
Not only that, after the reading is finished, if the Barcode or QR is a web address, it scans for viruses and then, optionally, it is registered in your list.
- If the selected picture from the gallery is not a Barcode or QR code, no scanning will be performed and no action will be taken.
Safety is priority.