Messages "Certificate verification problem detected" and "Cannot guarantee authenticity of the domain to which encrypted connection is established" when trying to open a website

Latest update: July 25, 2024 ID: 12489
 
 
 
 
Show applications and versions that this article concerns
  • Kaspersky Standard, Plus, Premium
  • Kaspersky Anti-Virus
  • Kaspersky Internet Security
  • Kaspersky Total Security
  • Kaspersky Security Cloud
  • Kaspersky Small Office Security
 
 
 
 

Issue

When opening a website, a warning message appears stating that "Certificate verification problem detected" or "Authenticity of the domain to which encrypted connection is established cannot be guaranteed".

Cause

  • The website may not be safe.
    There is a possibility that intruders may steal your account data and other personal information. We do not recommend visiting such websites.
  • Default encrypted connections scan settings have been changed.
    In this case, the warning may appear in the applications installed on your computer. To fix the issue, restore the default Scan encrypted connections upon request from protection components option using these instructions.

For other possible causes and solutions, see below.

Solution

If you are sure that the website is safe (for example, it's the official Microsoft website or an official page of your bank) and you visit it regularly, add this website to the exclusions using the instructions:

The message will no longer be displayed, the site will open.

If the warning appears on a website you don't use often:

  1. Check the website link with the Kaspersky Threat Intelligence Portal.
  2. If the link was identified as safe, allow opening the website once:
    1. To do so, click Show detailsI wish to continue in the browser window.
    2. Click Continue in the pop-up window.
 
 
 
 

Possible causes

 
 
 
 

How to add a website to exclusions in Kaspersky Standard, Plus, Premium

 
 
 
 

How to add a website to exclusions in Kaspersky Anti-Virus, Kaspersky Internet Security, Kaspersky Total Security, Kaspersky Security Cloud, Kaspersky Small Office Security

 
 
 
 

How to update root certificates on Windows 7, 8, 8.1, 10, 11

 
 
 
 

What to do if the issue persists

 
 
 
 
 
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