Probably not. I think most employee from home stuff is unsafe (as is most dealership stuff). It's a matter of crossing fingers, mainly.
EG all my stuff is secured on servers and electronic, but I would guess 75% of dealers print my car proposals on paper and one-finger type it into some system rather than parsing it via xml or something safer. No dealer ever asks for secure data, yet they could have very secure access. Nor finance companies. At every stage there is a risk. Dealers and finance companies want everything emailed, there are few secure servers or anything. So GDPR is mainly a joke anyway... except the VERY IMPORTANT GDPR form which must be signed of course and if it missed everything must STOP. That piece of A4 is hellishly powerful. The condominium is a safer bet.