systems where even the owner of the ISP doesn't really store any information
This is basically the default on routers if you don't enable NetFlow. Likewise DHCP and DNS daemons can trivially disable logging. It doesn't cost an ISP money to remove default surveillance; it costs them to add it but the value of the data is worth it.
This is basically the default on routers if you don't enable NetFlow. Likewise DHCP and DNS daemons can trivially disable logging. It doesn't cost an ISP money to remove default surveillance; it costs them to add it but the value of the data is worth it.