“In online wallets such as cryptocurrency exchange websites or services, the private key is managed by the online wallet operator, not the user, ...
source https://www.google.com/url?rct=j&sa=t&url=https://cryptovest.com/news/sony-rolls-out-cryptocurrency-hardware-contactless-wallet/&ct=ga&cd=CAIyGmM2Nzk3ODA2ZWViNjVjODI6Y29tOmVuOlVT&usg=AFQjCNHrD0eciP33_m373bAGld-is0llxQ
