Comodo Internet Security

Comodo Internet Security (CIS) is developed and distributed by Comodo Group, a freemium Internet security suite that includes an antivirus program, personal firewall, sandbox, host-based intrusion prevention system (HIPS) and website filtering.

In CIS 5.0 cloud antivirus protection and spyware scanning capabilities were added. As it could not clean all the malware it found effectively, Comodo Cleaning Essentials was developed to supplement CIS.

Host-based intrusion prevention system: Comodo's host-based intrusion prevention system (HIPS), named Defense+, is designed to provide protection against unknown malware. It is designed to restrict the actions of unknown applications, and restrict access to important files, folders, settings and the Windows Registry. Defense+ by default refuses any unknown program to install or execute except when specifically allowed by the user or when the file appears on Comodo's whitelist. In CIS 4.0 a sandbox was added to Defense+ to isolate and run unknown applications.

CIS v6, released February 2013, provided a major revision of the user interface and significant new features such as a fully sandboxed desktop environment.

On 6 March 2014, Comodo announced completion of beta testing for CIS v7. Release 7 became official in April 2014. This release includes a new virus monitoring tool called VirusScope and Web Filtering features that provide control over user access to web content.

Became official on 3 November 2014. It includes enhanced auto-sandboxing features.

Became official on 22 December 2016. It includes Secure Shopping, prevention on malware intercepting during online transactions.

Became official on 26 June 2018. It includes many stability and performance changes.