What is 'not provided' data in Keyword Reports?

Quite simply, it means Google is choosing not to share the key word data with you. The searcher did use a key phrase, obviously, but Google is not providing you with the information. It is all being done in interest of protecting the privacy of the searcher.

Quite simply, it means Google is choosing not to share the key word data with you. The searcher did use a key phrase, obviously, but Google is not providing you with the information. It is all being done in interest of protecting the privacy of the searcher.