Internet Security Upgrade refers to the practises and technologies used to protect internet-connected devices, networks, and sensitive information from unauthorised access, use, disclosure, disruption, modification, or destruction. Upgrading internet security typically involves implementing new security measures or updating existing ones to address new or emerging threats. This can include things like installing software patches and updates, using anti-virus and anti-malware software, setting up firewalls and intrusion detection systems, and teaching users how to stay safe online. It's important to note that internet security is constantly changing, with new threats and vulnerabilities emerging all the time. Because of this, it is important to keep up with the latest security trends and best practises if you want to protect your network or information system from threats.