Microsoft decided to make DO NOT TRACK option enabled as default in Internet Explorer 10.

This move has been largely criticized on the web as it is not an option that users opt-in by choice.

The company does allow the user to change this setting during installation but is only accessible when user decides to customize the settings during the install process.

Yahoo is the latest company to announce that they would ignore this browser setting from users on Internet Explorer 10.

The company said

Ultimately, we believe that DNT must map to user intent — not to the intent of one browser creator, plug-in writer, or third-party software service. Therefore, although Yahoo! will continue to offer Ad Interest Manager and other tools, we will not recognize IE10’s default DNT signal on Yahoo! properties at this time.