Re: How to secure the Internet in three easy steps

i don't believe that 2 or 3 will ever happen, for simple market reasons -- it is harder to make money if you do 2 or 3. however, 1 only costs a small bit of ops expense, and has no market impact at all, so it's practical in simple economic terms.

Not only that, but unless _everyone_ implements 2 and/or 3, all the bad people that exploit the things these are meant to protect will migrate to the networks that lack these measures, mitigating the benefits. This seems to be a catch-22; no one will implement these for the good of the net because it costs money, and ignorant competitors that don't implement them will not share in that expense. Have any such ideas been implemented in the modern internet? How?