Rapid7 Google hacks extended

site:s3.amazonaws.com filetype:docx password username

site:s3.amazonaws.com filetype:pdf password username

site:s3.amazonaws.com filetype:pdf social security number confidential

site:s3.amazonaws.com "Form W-4"

site:s3.amazonaws.com "Form W-9"

site:s3.amazonaws.com "Form 1099"

How many other file sharing services are affected by the inadvertant sharing of sensitive information?  I suspect there are many.  And the results will not be noisey.    Or better yet: Content delivery networks.