Norton Security Deluxe 2018 is a proprietary application for providing excellent protection on your PC and mobile devices. It warns you about the possible risks before any download is processed so you can avoid downloading infected software. It is a very useful tool that was developed by Semantec Corporation. The software can be used on up to 5 devices with a single license subscription. It is a reliable security package that lets you use your device and internet without getting worried about threats of information leak.