The web address cse.google.com is a legitimate part of Google search, known as “Custom Search” however there are plenty of browser hijackers who abuse this feature to generate revenue from Google.
This type of browser hijackers are often bundled with other free software that you download off of the Internet. Some free downloads do not adequately disclose that other software will also be installed and you may find that you have installed adware without your knowledge.
With Google Custom Search the person who created it has the option to set the custom search engine to search the entire web, similar to a normal search on Google.com and they can earn money from Ads.
Duncan is a technology professional with over 20 years experience of working in various IT roles. He also has a wide range of other skills in radio, electronics and telecommunications.