Bing has been caught stealing search results from Google with its Bing toolbar and IE8’s Suggested Sites feature. Google first suspected foul play in May 2010, with Bing results beginning to look uncannily like Google’s. Google set up a sting to prove that Microsoft was actually behind the wholesale mimicry of Google’s search results. By December 31, some fake results began appearing on Bing. See the examples after the break — it’s damning. The sting was carried out on D-Day on December 17.
Source: https://thehackernews.com/2011/02/bing-caught-copying-search-results-from.html