Bing (search engine) are entered and a list of related searches (called "Explore pane") based on semantic technology from Powerset, which Microsoft had acquired in 2008. In July 2009, Microsoft and Yahoo! announced a deal in which Bing would power Yahoo! Search. All Yahoo! Search global customers and partners made the transition by early 2012. The deal was altered in 2015, meaning Yahoo! was only required to use Bing for a "majority" of searches. In October 2011, Microsoft stated that they were working on new back-end search infrastructure with the goal of delivering faster and slightly more relevant search results for users. Known
Search engine privacy from the search engine. One way is for the user to use a plugin or software that generates multiple different search queries for every real search query the user makes. This is an indistinguishability solution, and it functions by obscuring the real searches a user makes so that a search engine cannot tell which queries are the software's and which are the user's. Then, it is more difficult for the search engine to use the data it collects on a user to do things like target ads. Being that the internet and search engines are relatively recent creations, no solid