COMODO Internet Security

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COMODO Internet Security offers 360° protection against internal and external threats. It  combines a powerful Antivirus protection, an enterprise class packet filtering firewall, and advanced host intrusion prevention system called Defense+.

COMODO Internet Security protects your PC from malicious software and Hackers. Best of all is FREE! COMODO Internet Security will help you detect and remove viruses, Trojans, also other malicious software and hackers. In one easy to use bundle that won’t slow down your computer.

COMODO Internet Security sees a major leap forward in security and usability with the addition of the new sandbox feature – isolated operating environment for unknown applications. Under default settings, unknown applications will be automatically sandboxed. So that they cannot make permanent changes to other processes, programs or data on your ‘real’ system.

Comodo Internet Security 10 Features:

  • Antivirus –  automatically detects and eliminates viruses, Worms and Trojan horses.
  • Firewall – constantly defends your system from inbound and outbound Internet attacks with a highly effective packet filtering firewall.
  • Defense+ is a rules based intrusion prevention system. It protects your critical operating system files from malicious processes, internal attacks and blocks unknown malware before it ever gets a chance to install.

Comodo Internet Security

Alerts you whenever potential malware attempts to attack or gain access to your system. The alerts are displayed as pop-ups at the right hand corner of your screen. It allow you to block the unrecognized activities, processes and connection attempts of running applications. CIS now even protects against ‘drive-by-download’ buffer overflow attacks.

Comodo Antivirus

Leverages multiple technologies, including Real-time and On-Access Scanning, On Demand Scanning and a fully featured Scan Scheduler. They can immediately start cleaning or quarantining suspicious files from your hard drives, shared disks, emails, downloads and system memory.

Comodo Firewall

Offers the highest levels of security against inbound and outbound threats. Also it stealths your computer’s ports against hackers and blocks malicious software from transmitting your confidential data over the Internet. The Firewall Task Center allows you to quickly and easily configure all aspects of the Firewall.

Advanced Features:

  • Install the Antivirus as a standalone
  • Install the Firewall as a standalone
  • Install both Firewall and Antivirus

Operating systems: Windows XP, Vista, Windows 7, Windows 8/8.1, Windows 10.

Changes in COMODO Internet Security

Homepage –

Size: 5.29 MB

Download Freeware [Online Intaller]

Download for Windows x86 [Offline Intaller]

Download for Windows x64 [Offline Intaller]

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11 Comments on "COMODO Internet Security"

The best free internet security suite.

The firewall and the HIPS (or Defense+ as Comodo names it) are top quality and the antivirus engine is descent (for a free one that is) but it needs more work, because in my experience I got some false alarms from the antivirus like detecting games and other programs as viruses (Guild Wars, Still Life, Pinnacle Game Profiler) other than that its OK.
I didn't say something's wrong with KIS, I said due to my preferences I would go for CIS Firewall, as I personally don't like "suites".

You can check matousec website for best firewalls comparison, and you'll see KIS is rated pretty high, although a bit below CIS :)

Among products tested against 84 tests, Comodo Internet Security 3.12.111745.560 and PC Tools Firewall Plus lead the challenge with the perfect 100% score. Online Armor Premium is close to them with 99% score, closely followed by Kaspersky Internet Security 2010 with 96 %. The Excellent protection level has been also reached by Outpost Firewall Free 2009 6.5.2724.381.0687.328 with 93 %, Outpost Security Suite Pro 2009 with 92 % and Online Armor Personal Firewall Free.
I will try this one, since Avira Premium Security started to crash. I`m satisfied so far. No computer overload and the firewall looks like working very well. Just did the grc test. I`m completely invissible on the Internet.

I've used Comodo for several years now and never had an issue with it... and it turned out to be the only product I could configure to give me a 'Perfect' stealth reading after testing several other renowned products.

Very good firewall (And free)
Totally agree that it's the best security in gathering AV and IS softwares but tell me that if this version absolutely free as like as the COMODO Internet Security Premium edition ?
About the free 1 year promotion of CIS PRO. It doesn't have TrustConnect. The only difference is Geekbuddy and Live PC Support which are useless for me. Why call it PRO if it's the same as the FREE version?

The software rocks especially the firewall, the anti-virus engine had major improvements but in my experience it slowed down my system a bit. So I'm just using the firewall with another anti-virus.

Here is the official link to get legal Comodo Internet Security 6 pro version for free(1 year)

i was pissed with that kaspersky internet security 2012,,even it clean the virus the pop-up windows of virus warning always up there,,and when asked abt this they(kas team) said re-install kis again or else they will say urs operating system is corrupt..and when you uninstall kis then be ready for more headache,bloody it screw up my registry entries,search option was gone, WMP showeing error...after i register my all .dll files everything got normal.Just check the kaspersky forum so much of problem people faceing,and they have only one answer re-install or format urs pc.. wat a crap.
huuu bye bye boreing slow net surfer KASPERSKY...

full protection..even they have online chat support....hats off to them

one of the best internet security suit i will say :))))))
this is prithvi (as my old account not working here) so in above comment what ever i said abt comodo intenet security regrading its merits..i take it back... this antivirus is ok not so good..Its scanning way is really makes urs pc slow..bad antivirusBest is microsoft security essential