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

 
 

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

Back to "Other errors"
Latest update: October 27, 2020 ID: 12489
 
 
 
 

This article concerns: 

  • 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 that "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. 

For detailed information about what can cause the message to appear, see the section below.

If the warning appears not for websites but for applications installed on your computer, this means default encrypted connections scan settings have been changed. To fix the issue, restore the settings to default.

Solution

If you are sure that the website is safe (for example, if it's an official page of your bank) and do not want the application to check it in the future and show warnings:

  • Add the website that causes the report messages to the exception list. See instructions below.
  • Alternatively, disable the encrypted connections scanning. See instructions below.

We do not recommend disabling the encrypted connections scanning completely, as it will reduce you computer's protection level. 

If the website is not among those you visit regularly, you can allow opening it for the current session. Next time you will see the warning again. See the guide on how to allow opening the website once below.

If the notification appears on a website you don't use often, you can allow opening it once. See instructions below.  

If you are not sure if the website is safe, you can check it with OpenTip before proceeding.

 
 
 
 
 

Why does the warning message appear

 
 
 
 
 

How to allow opening the website this time

 
 
 
 
 

How to remove the certificate warning messages by disabling encrypted connections scanning

 
 
 
 
 

How to remove the certificate warning messages by adding the website to the exclusions list

 
 
 
 
 

What to do if the message keeps reappearing

 
 
 
 
Was this information helpful?
Yes No
Thank you
 

 
 

How can we improve this article?

Your feedback will be used for content improvement purposes only. If you need assistance, please contact technical support.

Submit Submit

Thank you for your feedback!

Your suggestions will help improve this article.

OK