To be clear, I'm an independent contractor: people come to their website and ask for services, and I reply to the ones I can help with. If they decide to go with me, all payment goes through the website owners and I get a certain percentage. This is a national company.
The problem is that I recently agreed to their offer of getting a background check, the results of which will be displayed on my profile page there. It should have no difficulty going through, except that I'd forgotten that the name I use on the website is what I go by (middle and last name), and not my first name. When they noticed this, they sent me an email with the background check results, including my SSN, through regular email, and asked me to reply with my documentation (driver's license and Soc.Sec. card).
It bothers me greatly that they sent the results, unencrypted, without any concerns for my privacy. I am going to ask them if I can send the docs via fax, but is there any way that I can reasonably and productively ask them to not send me the new results of the background check results through email?