But then you would have to install updates constantly to have the latest models to compare your data against, vs a cloud solution where the models are always up

But then you would have to install updates constantly to have the latest models to compare your data against, vs a cloud solution where the models are always up to date. Privacy is important, but I think the solution I want is more in the area of haveibeenpwned, where an anonymized hash is passed into the ether rather than all the personally identifiable stool information.