I want to save my passwords and some other personal data on a ethereum like blockchain. it seems more persistant to me. I may lose my e-mail , my pc may crush and I may lose my usb stick. But nothing will happen to a blockchain.
I will encryp it and put
require(msg.sender,myaddress); to even read functions.
But still is there a way someone else can retrieve these information as it would be very bad because they could just easily login to my wallets with that info and steal funds.