Comodo Internet Security (CIS) was a comprehensive security suite for Windows computers offered by Comodo Cybersecurity. It[SQ]s important to note that

Comodo no longer actively develops or supports this specific product.

While you might find older versions online, it[SQ]s

strongly discouraged to use them.

Outdated security software is vulnerable to known exploits and won[SQ]t protect your system effectively.

When it was active, CIS typically included features like :

*

Antivirus:

Protection against malware, viruses, worms, and Trojans.
*

Firewall:

Monitored network traffic to prevent unauthorized access to your system.
*

Anti-spyware:

Detected and removed spyware and other unwanted programs.
*

Host Intrusion Prevention System (HIPS):

Monitored system activity for malicious behavior.
*

Anti-spam:

Filtered unwanted emails.
*

Website filtering:

Blocked access to potentially harmful websites.

Comodo[SQ]s approach was often characterized by a strong emphasis on its firewall and a more aggressive approach to blocking unknown applications. However, this sometimes led to usability challenges for users.

In summary:

Comodo Internet Security is obsolete. You should not attempt to use any older versions you find. Instead, opt for a reputable and currently supported security suite from a company like Bitdefender, Norton, McAfee, ESET, or Windows Defender (which is free and built into Windows).