About 2 months ago my blog was listed on yandex search engine and opera browsers infected site blacklist. You can read the post about it here – http://www.ruchirablog.com/opera-and-yandex-reports-blog-phishing-site/
But Google and other blacklist databases were reporting this blog as clean. As all of you think it raised big question about accuracy of yandex,opera blacklist because even Google listed it as clean and my through virus scans revealed nothing.
Black listing on opera was a big problem because visitors using opera as their web browser weren’t able to access my site. Opera and yandex uses same company Sophos for virus analysis and that’s why they both were reporting the same thing. basically yandex is using sophos and opera is using yandex blacklist database. So I turned up to yandex and was able to fix the problem within a week.