Out Of Curiosity, How Much Would Be Worth This Mortgages Dataset?

In my past job, and I want to as vague as possible, there was a need for data manipulation/migration/backup numerous times over the cours of say 2 years. There were almost no safety standards at place in handling the data, I couldn’t believe some of the tasks I was assigned by the management, for example I was supposed to back them up on my local machine temporarily, etc.

I don’t want to go more into detail and possibly get anyone (myself included) in trouble.

I was just curious, how much would be the data worth on open (and possibly black) market? I had no intention of betraying anyone but I wondered this for a couple of years now just being in awe how much the management was risking in trusting several people without having no protocols at place. I am pretty sure our contracts had no clauses about leaking data etc.

The data contained about 5-7000 mortgage details over a span of 5-7 years and its entire screening process (a very complex data model) – the applicants’ health reports based on their medical records, their specific and verified assets and liquidity, verified income, liabilities, the property information etc., banking information, contact information. Anything that would be required in a screening process for a mortgage was basically in the dataset. Lots of sensitive and personal information.

I don’t want to specify the country exactly, you may consider it was either USA, UK, or Canada.

And just to clarify, I would never do anything illegal with the data as I appreciated the people and had no intention of going to jail.