A good analysis of what data Yandex.Browser sends to its creators.

In short, here is what Yandex gets after installing the browser:

• List of installed software on the user's PC
• Current DNS settings (and perhaps substitutes for his own)
• Hosts file content
• The entire list of users in the system

At the same time, it hides all notifications from the user so that no questions arise.

All this movement happens legally, because when downloading by default there is a consent checkbox for sending, but what respect is that when turned off, all surveillance really turns off.

In the comments, one of the developers immediately came (?) and began to positively assure that this was for the benefit of the user to fight viruses, simultaneously praising the author for his ingenuity, but we know that.

Source