The most popular firewall on Windows
Comodo Internet Security is the free, multi-layered security application that keeps hackers out and personal information in. Built from the ground upwards with your security in mind, CIS offers 360° protection by combining powerful Antivirus protection, an enterprise class packet filtering firewall, and an advanced host intrusion prevention system called Defense+. For both average and advanced users.… More Edit
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Information
Did you create this app?| Website: | personalfirewall.comod... |
| Developer: | COMODO |
| License: | Free |
| Version: | 3.13.119746.572 |
| Rating: | Features: Interface: Performance: Price/value: Overall: |
| Usage: | 2 months, 3 weeks, 6 days, 18 hours, 2 minutes and 43 seconds |
| Usage since: | 02 May 2007 |
| Share: |








Pretty much the only package you need. First thing I install on a new Windows installation after Firefox.
I was on the hunt for the best free firewall software on Windows and I think I finally found it with Comodo. It has most of the features of the non-free firewalls which is great because it can be simple for novice users but it can also be advanced enough for experts.
I use this firewall from three years ago, in XP and now in 7 Professional. It's cool, intercepts every strange conecction, doesn't use much RAM and works smoothly. I love this firewall :D
http://www.matousec.com/projects/proactive-security-challenge/results.php
2009-10-10: A single product update:
* Comodo Internet Security 3.12.111745.560
Per its vendor's request, we have tested the latest version of Comodo Internet Security. As the first product, Comodo Internet Security reached the perfect score against all 84 tests in the testing suite. Congratulations!
Comodo Internet Security
3.12.111745.560FREE 100% 10+ Excellent – 100%
Best firewall that is working on Windows 7 that is free FREE and tracks every connectiong trying to connect outside world.
for me,it's hard to config,besides this,CIS is perfect.
Just the best freeware firewall.
Five stars all round. Free, great performance and it's easy to use. The pop ups do get annoying every time you try to do something new with a piece of software but you get used to it.
yeahh!! free and very useful. best firewall ever (except kerio 2.ileśtam)
just great one. really enjoy the perfomance
A very powerful, and sometimes intrusive Security program that does all it says and more. It has a fairly valued Anti-virus as well as multiple levels of Firewall security for the user, it is also extremely compatible being the only Windows XP Professional x64 firewall.
I don't use the A/V component but the firewall is fantastic.
A very functional application. But If I were in Comodo, I'd try to improve the interface, which sometimes could be a bit disorienting, expecially for beginners. Also, I would add a sort of filter in the file submission window: I don't have the time to separate evident non-malicious software to suspect files by myself every time (this would prevent to see thousands of file in the suspicious list, which sometimes is a bit frustrating).
As last notice, I don't know if it happens just to me, but the on-line secure-file-checker returns "unknown state" 9 times out of 10.
I use the latest CIS 3.11 and have to say that the software is state of the art. Completely installed its a total protection tool with a firewall, anti-virus and D+. I have used this for a while now and it works like a charm. The Defence+ option is a live safer. In version 4 there will be a new item that can set your system back in time. Looking forward tho that.
It's "free forever", which makes it simply awesome.
There's room for improvement, though. I wish they wouldn't use a skinned interface, and the task icon's right-click menu could use some redesigning.
The training mode is brilliant and saves lots of frustration!