I asked Google: "does siri use google". Top result: "Currently, Siri defaults to the user's preferred Safari search engine, which is set by default to Google b

I asked Google: "does siri use google". Top result: "Currently, Siri defaults to the user's preferred Safari search engine, which is set by default to Google but can be changed to Yahoo or Bing. But with the debut of iOS 7, Siri search will default to Bing instead."