You would be surprised to find out how many large companies(i.e top 500) lost theier databases, banks included. Many can be googled but most never made it publi

You would be surprised to find out how many large companies(i.e top 500) lost theier databases, banks included. Many can be googled but most never made it public or didn't even know what happened to them. Chances are that your contact data has been leaked by several parties already. My conclusion is that you can't secure data unless you make a goal of that and even then it's not a sure thing. All your private networks have multiple public entery points and possibly a coordinator(i.e kubernetes admin). Most ecommerce companies and even payment processing companies think of security as an accessory to their business not a primary concern. If they are too focused on security they loose market share(i.e the vetting takes too much time) The only solution is to consider all unencrypted data public and use encryption at the client level(i.e mobile device).