DuckDuckGo, started in Sep 2008, is another internet search engine just like Google, Bing, Yahoo, Baidu. The search engine claims to keep the user privacy as private thus being one of the most famous search engines in recent times with over 1.5 billion searches every month. The user privacy is in the terms of researched information, passwords, emails etc, however Virus attacks, malwares etc are possible as they are a part of the black internet side.