Detecting malicious code
Search results that answer users' questions show a lot of links to web pages. Unfortunately, any web page can contain not only the answer to the question, but also malicious code that steals personal data or infects your computer with viruses.
To protect Yandex users, we regularly check indexed sites for malicious code. Once we discover malicious code, we mark such site pages in search results:
To find malicious code, Yandex uses a proprietary antivirus system and a product from our partner, Sophos®.