10
Accountability
•Can’t identify bad guys, so can’t deter them
•Fix? End nodes enforce accountability
–Refuse messages that aren’t accountable enough
•or strongly isolate those messages
–Senders are accountable if you can punish them
–All trust is local
•Need an ecosystem for
–Senders becoming accountable
–Receivers demanding accountability
–Third party intermediaries
•To stop DDOS attacks, ISPs must play