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Comodo Internet Security

Comodo Internet Security

Version 12.2

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Comodo Internet Security Essentials > Understand Alerts And Configure Exceptions
  • Introduction To Comodo Internet Security
    • Special Features
    • Download, Installation And Activation
    • Start Comodo Internet Security
    • The Main Interface
      • The Home Screen
      • The Tasks Interface
      • The Widget
      • The System Tray Icon
    • Understand Security Alerts
  • General Tasks – Introduction
    • Scan And Clean Your Computer
      • Run A Quick Scan
      • Run A Full Computer Scan
      • Run A Rating Scan
      • Run A Custom Scan
        • Scan A Folder
        • Scan A File
        • Create, Schedule And Run A Custom Scan
    • Secure Shopping Settings
    • Manage Virus Database And Program Updates
    • Get Live Support
    • Manage Blocked Items
    • Instantly Scan Files And Folders
    • Process Infected Files
  • Firewall Tasks - Introduction
    • Configure Internet Access Rights For Applications
    • Manage Network Connections
    • Stop All Network Activities
    • Stealth Your Computer Ports
    • View Active Internet Connections
  • Containment Tasks - Introduction
    • Run An Application In The Container
    • Reset The Container
    • Identify And Kill Unsafe Running Processes
    • View Active Process List
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      • The Main Interface
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      • Configure The Virtual Desktop
      • Close The Virtual Desktop
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    • Create A Rescue Disk
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    • Remove Deeply Hidden Malware
    • Manage CIS Tasks
    • Manage Quarantined Items
    • View CIS Logs
      • Antivirus Logs
      • VirusScope Logs
      • Firewall Logs
      • HIPS Logs
      • Containment Logs
      • Website Filtering Logs
      • Device Control Logs
      • Autorun Event Logs
      • Alerts Logs
      • CIS Tasks Logs
      • File List Changes Logs
      • Vendor List Changes Logs
      • Trusted Certificate Authority Change Logs
      • Configuration Change Logs
      • Secure Shopping Activity Logs
      • Search And Filter Logs
    • Submit Files For Analysis To Comodo
  • CIS Settings
    • General Settings
      • Customize User Interface
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      • HIPS Rule Sets
      • Protected Objects
        • Protected Files
        • Blocked Files
        • Protected Registry Keys
        • Protected COM Interfaces
        • Protected Data Files And Folders
      • HIPS Groups
        • Registry Groups
        • COM Groups
    • Containment Configuration
      • Containment Settings
      • Auto-Containment Rules
      • Containment - An Overview
      • Unknown Files - The Scanning Processes
    • File Rating Configuration
      • File Rating Settings
      • File Groups
      • Submitted Files
    • Advanced Protection Configuration
      • VirusScope Settings
      • Scan Exclusions
      • Device Control Settings
      • Script Analysis Settings
      • Miscellaneous Settings
      • Comodo Secure Shopping
    • Website Filtering Configuration
      • Website Filtering Rules
      • Website Categories
  • Comodo GeekBuddy
    • Download And Install GeekBuddy
    • Overview Of Services
    • Activation Of Service
    • Launch The Client And Use The Service
    • Accept Remote Desktop Requests
    • Uninstall Comodo GeekBuddy
  • TrustConnect Overview
  • Dragon Browser
  • Comodo Backup
  • Comodo Internet Security Essentials
    • What Is Comodo Internet Security Essentials
    • What Is A Man-in-the-middle Attack
    • How Does Comodo Internet Security Essentials Protect Me From A Man-in-the-middle Attack
    • What Is The Install Location Of Comodo Internet Security Essentials
    • How Do I Update CISE
    • Understand Alerts And Configure Exceptions
    • How Do I View CISE Help
    • How Do I View The Version Number And Release Notes
    • How Do I Remove Comodo Internet Security Essentials
  • Appendix 1 CIS How To... Tutorials
    • Enable / Disable AV, Firewall, Auto-Containment, VirusScope And Website Filter Easily
    • Set Up The Firewall For Maximum Security And Usability
    • Block Internet Access While Allowing Local Area Network (LAN) Access
    • Block/Allow Specific Websites To Specific Users
    • Set Up HIPS For Maximum Security And Usability
    • Create Rules To Auto-Contain Applications
    • Password Protect Your CIS Settings
    • Reset Forgotten Password (Advanced)
    • Run An Instant Antivirus Scan On Selected Items
    • Create An Antivirus Scan Schedule
    • Run Untrusted Programs In The Container
    • Run Browsers In The Container
    • Run Untrusted Programs In The Virtual Desktop
    • Run Browsers In The Virtual Desktop
    • Restore Incorrectly Blocked Items
    • Restore Incorrectly Quarantined Items
    • Submit Quarantined Items To Comodo For Analysis
    • Enable File Sharing Applications Like BitTorrent And Emule
    • Block Any Downloads Of A Specific File Type
    • Switch Between Complete CIS Suite And Individual Components (just AV Or FW)
    • Switch Off Automatic Antivirus And Software Updates
    • Suppress CIS Alerts Temporarily While Playing Games
    • Renew Or Upgrade Your License
    • Use CIS Protocol Handlers
    • Configure Secure Shopping
    • Comodo Cloud Backup
    • Give Contained Applications Write Access To Local Folders
    • Use The Comodo Uninstaller Tool
  • Appendix 2 - Comodo Secure DNS Service
    • Router - Enable Comodo Secure DNS Service
    • Windows - Enable Comodo Secure DNS
  • Appendix 3 - Glossary Of Terms
  • Appendix 4 - CIS Versions
  • About Comodo Security Solutions

Understand Alerts and Configure Exceptions


 If CISE detects that a website is potentially using a fraudulent certificate it will present you with an alert similar to the following:




The alert means that the website you are visiting may be fraudulent as it is using a certificate signed by a root that is not in CISE's internal store of trusted root certificates.

  • Protect me and block website access - Closes your connection to the website (recommended)
  • Add certificate to exception list and continue – Adds the certificate to the whitelist and allows the connection to proceed. The root certiicate will not be flagged if CISE detects it in future on any sites. Only choose this option if you are sure the website can be trusted or is using, for example, a self-signed certificate that you have already been made aware of. Do not choose this option if this is one of your regular shopping or banking websites.
  • Continue browsing this time only – Accept the connection only for the current session. CISE will warn you again if it detects this certificate next time.

You can whitelist certificates and websites in two ways:

  • via the Windows Start Menu:

Click Start and select All Programs > Comodo > Internet Security Essentials

OR

  • by clicking the cog icon in the alert:




This will open the CISE configuration screen:



 

  • Enable protection - CISE will monitor the SSL certificates used on the sites you visit and will warn you if a potentially fraudulent certificate is used.
  • Automatically install program updates (recommended) - CISE will check with Comodo servers every day for any updates.

You can add certificates and/or website(s) to the list of exceptions:

  • Certificate exception - Certificates added to this list will not be flagged by CISE in future.
  • Website exception - CISE will not flag any certificates on the domains you add here.

Add a certificate to exception

  • Click the 'Add' under the 'Define exceptions for certificate' to open the certificate configuration dialog:


 

  • Select the certificate you wish to whitelist from the list of untrusted certificates that CISE has encountered since installation.
OR
  • Manually type the name (Common Name) of the root certificate you wish to exclude.
  • Click 'Apply' for your settings to take effect.
  • The certificate(s) will be added to the list of exceptions.
  • Repeat the process to add more certificates.

Add a website to the exclusion list

  • Click 'Add' under 'Define excluded websites' to open the website whitelist configuration dialog:




  • Enter the URL of the web site you wish to exclude in the field provided then click 'Apply'.
  • CISE will no longer flag potentially fraudulent certificates found on whitelisted domains.
  • Click 'OK'. Repeat the process to add more websites.

Edit / remove a certificate / website

  • To edit a website name or a certificate, select it and click 'Edit'.
  • To remove a website or a certificate, select it and click 'Remove'.
Click 'OK' for your settings to take effect.
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