The actual protocol that are used for the internet aren't good for the actual era that we are living in.
--The problems of today’s Internet start at the Ethernet layer, where sender’s MAC-48 addresses can be faked, and packets can be intercepted and modified by switches.
The TCP/IP layer has the same problems, with routers learning source and destination of all communications, as well as details about the payload (such as port numbers). Routers can also interfere with connections, for example by injecting RST packets.
TCP also operates with the assumption that other traffic will be “TCP-friendly”, which is like having a speed limit on
roads without enforcement. TLS, the workhorse for today’s “Internet security”, provides “security” only if all of hundreds of certificate authorities operate correctly (which they usually do not), and it comes with a large set of supported cipher suites, most of which are known to be insecure.--
https://gnunet.org/strint2014gnunet
Thanks to the #gnunet team