Here's the email I received from Indeed.com:
Hi,
Thank you for contacting Indeed.
Indeed.com includes all the job listings from major job boards,
newspapers, associations and company career pages - the jobs contained
in Indeed's search results, or linked from those results, have been
created by people over whom Indeed exercises no control. Indeed's job
search results are indexed in an automated manner and Indeed does not
screen the jobs.
For your privacy and protection, when applying to a job online never
give your social security number to a prospective employer, provide
credit card or bank account information, or perform any sort of monetary
transaction.
In order to find more information on who is posting the jobs I would
suggest contacting the website of the original job listings directly.
Sincerely,
Marcy Levitan
Indeed.com