An Azure service that stores unstructured data in the cloud as blobs.
Just to clarify - we can generate tokens for otherwise anonymous access to huge amounts of data, and for years Microsoft has purposefully not logged the generation of tokens so admins cannot understand the exposure their data currently has. As these are public facing, there is a nonzero chance a malactor could stumble across a collision in the URL and get your data without ever actually having the token, and the admins would never know a token was even available, even though the valid token wasn't even used.