Even better, the mystery of why a mortgage lender randomly asked me about my employment history from over two decades ago (i.e., working for my Mom!) is now solved! I was like, "How do you know I worked for my Mom in the 90s? And of all the jobs to ask about, why this?" Turns out only three employers show up over multiple decades of employment.
Happy to see that the payroll processor I used for awhile for our personal companies until I started doing it myself didn't share our data, but am now really worried about future control of it.