Wechat official account to check the financial bill, scanning the QR code to show the invoice failed, but the invoice was fake. The invoice is intact, and the QR code of the invoice is clear and unchanged, so it is a fake invoice. The official account of WeChat WeChat failed to check the financial bill, and scanned the QR code to display the invoice. The QR code is damaged and cannot be scanned, but the QR code is too small to be scanned when it is close; Or there are stains on the lens of the mobile phone, which can be cleaned before scanning.