Is there a way to sync all personal login details such as password, username, email, etc. from any website and social networks across all platforms? Like Google Chrome does with passwords or Keychain for Mac.
For example: I have to change my personal address or email, so I have to login into each website/service (Twitter, Facebook, Playstation Network, Paypal, ...). That's really time consuming and annoying. Is there any way to do that differently? Is that even technically possible/secure?