Blocking dangerous pages
Yandex Browser for Mobile warns you when you go to a dangerous site, although it's not a full-fledged antivirus product. Yandex Browser protects your device against threats that antivirus programs don't block. We recommend using both for full protection.
When you open a web page, Yandex Browser checks it against a database of infected sites. If the page is found in the database, it won't load. You'll see a notification, and the icon will appear in the SmartBox. You can nevertheless choose to ignore the warning and visit a website with dangerous content.