Sandbox Technology

Stay ahead of threats with best internet security suite

Our sandbox technology automatically locks unknown files in a secure environment while our Valkyrie system tests their behavior in real-time - protecting you against malware that the virus industry hasn’t even discovered yet.

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Secure Online Storage

Online storage

Backs up files to a secure online virtual vault. Includes 50GB of free backup space (Upgrades available).

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Hot Spot Protection

Trustconnect™

Hot spot protection that encrypts all data transmitted over both wired and wireless Internet connections up to 10GB per month.

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Secure Online Shopping

True security for online banking and shopping

Secure Shopping lets you shop and bank online with confidence. This breakthrough technology isolates your browser inside a secure container which cannot be hacked, tracked or viewed by malware or internet thieves.

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The Secrets of Comodo Internet Security

Antivirus

Tracks down and destroy any existing malware hiding in a PC.

Anti-Spyware

Detects spyware threats and destroys each infection.

Anti-Rootkit

Scans, detects & removes rootkits on your computer.

Bot Protection

Prevents malicious software turning your PC into a zombie.

Defense+

Protects critical system files and blocks malware before it installs.

Auto Sandbox Technology™

Runs unknown files in an isolated environment where they can cause no damage.

Memory Firewall

Cutting-edge protection against sophisticated buffer overflow attacks.

Anti-Malware

Kills malicious processes before they can do harm.


top product

Now Get The Best Antivirus Software From Comodo Internet Security Premium

AV-TEST has rated our Internet Security Premium as the "Top Product" providing the best protection against malware infections with an exceptional impact on the whole computer. Tested against current online threats, our protection product proved to ward off attacks with its award-winning firewall and advanced system monitoring tool called "Kill Switch".

Best Virus Prevention Technology on the Market. Guaranteed.

Comodo Internet Security Complete guarantees protection against viruses and malware by focusing on prevention not simply detection. Our patent pending prevention based technology creates an impenetrable shield that identifies safe, unsafe and questionable files. Comodo Internet Security Complete offers real-time protection against Viruses, Trojans, Adware, Spyware and other Malware threats. Other Antivirus products depend on signature updates alone but Auto Sandbox Technologyâ„¢ means you're protected from even unknown threats

virus free guarantee

Virus-Free Guarantee*

Comodo believes security software companies should stand behind their products, which is why we back Comodo Internet Security Complete with a unique guarantee. If your PC ever becomes infected, our online technicians will correct the problem at no addition cost to you. To back this up, Comodo's Guarantee covers your PC with up to $500 for repair costs (For US based customers), should your PC become infected with a virus or malware and we can't restore you to working condition. With Comodo Internet Security Complete, you get Security, Software, Support plus peace of mind.

More than just a Security Suite

Comodo Internet Security Complete is more than a security suite, it also offers 24/7 access to our highly trained PC experts ready to provide support anytime day or night. Just click the desktop icon and you will be connected to a Comodo security expert who will assist you via chat and remote connection to your desktop.

User Reviews

Comodo Internet Security Features

  • firewall
    Firewall

    Comodo's Firewall consistently ranks among the highest in industry tests.

  • deny protection
    Defense+ Technology

    Proactive protection to automatically isolate threats from suspicious files so they can't cause harm actually preventing infections not just detecting them. Cloud based whitelisting of trusted publisher easily identifies a safe file and vendor.

  • auto sandbox technology
    Auto Sandbox Technology™

    To reduce interruption to the user, unknown files can only run in a secure virtual environment where they can't damage Windows, its registry, or important user data.

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    Secure Shopping

    Total security for online shopping and banking. Features browser isolation, keylogger prevention, copy-paste protection, screen capture blocking and SSL certificate inspection.

  • minimal interruptions
    Minimal Interruptions

    Comodo Internet Security Complete relieves you of the responsibility of deciding whether to block or allow untrusted files - it makes the decisions for you. Game Mode suppresses operations that could interfere with a user's gaming experience such as alerts, virus database updates or scheduled scans.

  • icon 5
    Spyware Scanning

    Spyware Scanner detects and cleans malware infections in PC registry and disks.

  • cloud based antivirus
    Cloud based Antivirus

    Cloud based antivirus scanning detects malicious file even if a user does not have up-to-date virus definitions.

  • icon 6
    TrustConnect™

    Hot spot protection that encrypts all data transmitted over both wired and wireless Internet connections up to 10GB per month.

  • icon 8
    Online Storage

    Backs up files to a secure online virtual vault. Includes 50GB of free backup space (Upgrades available).

  • icon 9
    Unlimited Live Expert Virus Removal

    Our Experts will clean your PC, uninstall old antivirus, and ensure your PC remains clean.

  • icon 11
    Virus-Free Guarantee

    If a PC that has Comodo Internet Security Complete installed becomes infected with a virus or malware and cannot be restored to working condition by our support team, we will cover the cost of repair by a Comodo certified service up to $500.

  • icon 10
    Compatibility

    Windows 10, Windows 8, Windows 7, Windows Vista and Windows XP (32-bit and 64 bit versions available).

Best virus protection
Get Full Protection

Got more than 1 PC? Get 3 Licenses for $39.99

Comodo Secure Shopping

Comodo Secure Shopping

Comodo Secure Shopping provides unbeatable security for online banking and shopping sessions by ensuring you connect to those websites from within a security-hardened browsing environment.

  • Hides sensitive online data from other processes running on your PC
  • Prevents key-loggers from recording your keystrokes
  • Warns you if there is a remote connection to your computer
  • Stops hackers and malware taking screenshots of your session
  • Detects fake SSL certificates to stop man-in-the-middle attacks

Auto-Sandbox Technology

Auto-Sandbox Technology

Comodo Internet Security prevents even the very latest malware from infecting your system by isolating unknown and suspicious files inside a security hardened virtual environment. Applications executed inside the sandbox will not affect other processes, programs or data on your real computer. In addition to running suspicious applications inside the sandbox on an ad-hoc basis, you can create a specific list of programs that should always run in the sandbox.

  • Hotels
  • Airports
  • Restaurants
  • Convention Centers
  • Public Networks

TrustConnect

TrustConnect service is a fast, secure internet proxy service that makes surfing the web safe from public Wi-Fi. TrustConnect prevents criminals from attacking or scanning the system from the local network that you're using to connect to the Internet. It also encrypts all traffic destined for the Internet. Web site addresses, instant messaging, personal information, plain text usernames and passwords and other important information can be broadcast in the clear when using publicly accessible wireless Internet connections. Cyber criminals can easily intercept these broadcasts.

  • Securely encrypts all data transmitted over both wired and wireless Internet connections
  • Creates a Virtual Private Network to hide all personal web-surfing information
  • Utilizes industry-standard 128-bit encryption
  • Lightweight—protects without interfering with normal computer operation

Online Storage

Online Storage

Comodo Internet Security helps home and business users protect their valuable data against damage or loss.

  • Quickly create backups of your priceless data to a wide range of storage media
  • Backup data from any source and recover to any destination or system
  • Granular scheduling options to take automatic backups at a time that suits you.
  • Quick recovery of files with a few clicks of the mouse.
  • Powerful encryption options to protect your files so that it cannot be accessed by anyone but you.

FAQ about Comodo Internet Security

What makes Comodo Internet Security Complete better than my current Antivirus and Firewall?

Comodo Internet Security Complete adds an additional layer of prevention called Defense+. This is what is known as a HIPS or Host Intrusion Prevention System. Antivirus software is a cleaning tool which scans for known viruses and removes them after they have already taken root. Comodo is a prevention tool as well as a cleaning tool, stopping potential viruses at the door. This works by inspecting each file that attempts to run on your computer and instantly comparing the files to White Lists of good files and Black Lists of dangerous files. If a file is not on either list it is restricted by our Auto Sandbox Technology™ so that you're protected and can still work until the file is added to the correct list and either released or removed.

...read more
What happens if my PC becomes infected by a virus while using Comodo Internet Security Complete?

If you think you may have a virus, you should contact us right away by clicking the Live Support button in your software console. If you cannot connect to the Internet, your confirmation email or user manual includes an 800 number to call for support. If for any reason the PC cannot be restored to working condition by our support team, we will provide up to $500 in service time from a local repair center to get your PC working again. See End User License Agreement for complete details.

...read more
What is 'Secure Shopping'?

Comodo Secure Shopping provides unbeatable security for online banking and shopping sessions by running your favorite browser inside a security-hardened virtual environment which is isolated from the rest of your computer. This creates a threat resistant tunnel between you and your target website which cannot be attacked by other processes running on your computer. Secure Shopping also features memory-scraping prevention, remote takeover protection and independent SSL certificate authentication to deliver the next-generation of security for online transactions.

...read more
What is TrustConnect™? How does it work?

TrustConnect™ is a secure Internet proxy service that encrypts all data a PC transmits over wireless and wired Internet connections, preventing hackers from accessing the connection and stealing personal and private information. It's like a personal VPN creating a secure tunnel over the Internet even in a non-secure public hotspot.

...read more
What makes Comodo's Internet Security Complete different from other Internet security suites?

The best prevention is only effective if the user has the necessary support. That is why Comodo ensures that a technician is available 24/7 to assist customers clean their PC, uninstall old antivirus, and ensure their PC remains clean. Most PC issues are caused by malware and as a result, Comodo ensures that you're not only protected but have a technician standing by to fix a problem, destroy a virus or just make sure your not heading for disaster.

...read more
How does the Remote Security Setup & Anytime Support work? Does it differ from traditional tech support?

After activating your subscription included with Comodo Internet Security Complete, click on the desktop icon to begin your chat with a security expert. This service goes beyond traditional tech support by solving the issue for you through a remote connection and it is offered unlimited and 24/7 for up to 3 PCs per license.

...read more
What is the Sandbox and how does it protect me?

The sandbox is a virtual operating environment created within your computer for unknown and suspicious programs. Comodo Internet Security Complete automatically runs suspicious programs in the sandbox where they cannot damage Windows, its registry or important user data. This protection goes well beyond traditional Antivirus software by ensuring any new viruses are completely isolated and cannot cause damage.

...read more
How will Comodo keep my PC virus-free?

Comodo Internet Security Complete will ensure your PC remains virus-free with its combinations of advanced features. Defense+ technology will ensure that no suspicious files are allowed to run on your PC. Its new Auto Sandbox Technology will ensure that all programs are tested and run in a secure virtual environment before ever running on your PC - ensuring that no viruses are installed with them.

...read more
Is it free for business users too?

Yes. However, enterprises looking to implement Internet Security on large networks of workstations would benefit from the centralized management capabilities of Comodo Advanced Endpoint Security.

Why should I upgrade to CIS Complete?
CIS Complete offers the same unbeatable protection as our free version plus the following great features:

GeekBuddy
Instantly chat with a Comodo support engineer at any time of day or night.

You'll get expert advice on any product questions you may have and can ask your GeekBuddy to connect to your PC to run a personalized malware cleaning service.

But there's more! The GeekBuddy service that comes with CIS Complete provides total PC support, meaning you can ask your GeekBuddy for help with any computer problem or task. This includes, for example, printer setup, remote PC repair, software troubleshooting, PC tune up and optimization, Windows problems and more.

No longer do you need to make time consuming calls to help desk support staff. Just click the GeekBuddy desktop icon, sit back and relax while our friendly technicians do the work for you.


TrustConnect
You've all heard of the security concerns regarding public WiFi at airports and cafes, right? TrustConnect overcomes these issues by automatically encrypting all data sent over wireless internet connections.

Nearby data thieves and hackers cannot 'sniff' or intercept your data. They can't even determine your location because, as you are connecting to the internet through a secure VPN connection to the TrustConnect servers, your requests appear to come from our IP address.

Whenever Comodo Internet Security detects you are using an insecure wireless connection, it will prompt you to use your TrustConnect account for the connection instead. Each CIS Complete customer gets a massive 10 GB of TrustConnect traffic per month. Take your security on the road with you with TrustConnect


Online Storage
Automatically backup your data on a daily basis using your free 50 GB of highly secure online storage. Comodo Online Storage helps avoid losing your precious data to:

  • System and hard drive crashes
  • Lost or stolen laptops
  • Fire, flood, and other natural disasters
With Comodo Online Storage, your data is secure in flight and at rest. Your files are encrypted before they even leave your computer with the industry's strongest encryption algorithms; transferred over a 256 bit SSL connections and stored in encrypted form in Comodo's highly secure storage infrastructure.

Comodo Online Storage is there for you when you need it most. You can retrieve your files, whenever you need them, from any internet connected device in the world - 24/7.


Virus-Free Guarantee
We're so sure that Comodo Internet Security is the world's best desktop security product that we've decided to put our money where our mouth is! If your PC becomes infected while CIS Complete is installed and it cannot be restored to working condition by our support team, the cost of repair is covered up to $500.

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Best virus protection
Get Full Protection

Got more than 1 PC? Get 3 Licenses for $39.99

Product info & Sales & Support:
888-351-8017

Make sure to have your order number or subscription information available.

For technical product questions visit our Support Home Page click on the "Submit a Ticket" link and select "Internet Security Support" from the dropdown menu and submit.

Online Help Guide

Check out our Online Help Guide for tips on how to use and configure our products and for detailed technical information.
Go to the Help Guide

Forum & Knowledgebase

Our Forum is populated with fellow Comodo users and developers alike and can quite often be the quickest and friendliest way to find answers to questions that you have.
Read the Forum

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Secure Shopping

Comodo Secure Shopping is a major new feature in CIS which provides unbeatable security for online banking and shopping sessions. When using Secure Shopping, websites will open inside a security-hardened virtual environment which is isolated from the rest of your computer. This creates a threat resistant tunnel between you and your target website which cannot be monitored or attacked by any other processes running on your computer.

  • Hides sensitive online data from other processes on your PC
  • Prevents keyloggers from recording your keystrokes
  • Warns you if there is a remote connection to your computer
  • Stops hackers and malware taking screenshots of your session
  • Detects fake SSL certificates to stop man-in-the-middle attacks

But Secure Shopping isn't just for the internet! You can run any application which handles sensitive information inside the secure environment. Examples include:

  • - Email applications like Outlook and Thunderbird
  • - Accounting software like Sage
  • - Password managers
  • - Spreadsheet software like Excel
  • - FTP and VPN clients
  • - Instant messaging and chat applications
  • - File sharing clients like Drop Box

Applications inside the secure environment are totally sealed-off from other processes on your computer - meaning there is no way that malware can gain access to your data.

The technology behind Comodo Secure Shopping is already being used by major point-of-sale and money-wiring organizations to secure sensitive customer transactions. With CIS, Comodo brings this same level of security to your home. If you need a truly secure place to work and go online, then use Comodo Secure Shopping.

Web Installers

We've streamlined our installation processes so users always receive the most up-to-date version even if you download an outdated build.

Unblock Applications

Have you ever tried to run a program only to find your security software is blocking it - then can't figure out what you need to do to get it running? Is it the firewall, the behavior blocker, the sandbox or the antivirus which is stopping it? Comodo's new unblock applications feature allows you to release applications with a single click from whichever security component has blocked them.