Comment by fragmede

But what are the products from them that implement HE and that consumers are using? Microsoft, IBM, Intel, and Google have all released libraries for HE, and there's Duality SecurePlu, but as far as actual consumer products, Apple's caller ID phone number lookup and other features in iOS 18 is very possibly the first.

As far as why it's not more of a buzzword, it's far too in the weeds and ultimately consumers either trust you or they don't. And even if they don't trust you, many of them are still going to use Apple/Google/Facebook system anyway.