I would comment that you started talking about your “content” and then you referred to it is “data”. There is a big difference.
Does any of your content involve rights managed material: music, talent, imagery (both for hire and stock)?
If so, do you have the rights to give that content to another company for their use?
(Make no mistake they are using that content.)
Are you able to prove you have the rights for each file in that 70TB?