Who are your authenticated users?

I ran across a data breach at Dow Jones, the parent company of the Wall Street Journal newspaper. Apparently there was a database export that was stored on an Amazon S3 bucket. A security researcher discovered this and notified the company. Once the issue was corrected, the article linked above was published. The details note that the security on the bucket was set to authenticated users, which is good. So, some security was set up. To me, if I were operating in an Azure or AWS environment, I would assume this meant authenticated users in my subscription/account/etc. In other words, my business partners and employees. Read the rest of Who Are Your Authenticated Users?