overdrive did reply saying we look after your data really carefuly and do not share it with anyone. that was all they answered.
I think I will leave it be for now, having aired my concerns
FYI. when iI first did e- book borrowing from my library [ via the ADE on PC rigmarole ]I recall complaining to overdrive because there was NO available borrowing history & I wanted to avoid borrowing the same book twice - & overdrive& my library both said sorry - we don't store that stuff - can't help you.....maybe I am just hard to please
& I'll just not borrow anything with
bombs for dummies or
101 easy ways to recruit Jihadis on social media in the titles