US Patent 9262633 Barcode reader with security features

Indicia may include security threats that, when scanned by a barcode reader, may cause unwanted actions to be performed by a host device communicatively coupled to the barcode reader. To prevent these security threats from affecting the host device, security software running on a processor in the barcode reader or the host device compares the scanned data with items in a threat-signature library. Scanned data that match, at least part of, the threat signature library are blocked from being transmitted to the host device.