Forgeries motivate people to adopt digital signature technology! Spam motivates people to develop better filtering techniques! Cracks motivate people to adopt secure systems and to back-up their important data! Mailbombs and SYN floods motivate people to acquire denial-of-service-attack-resistant services! Trolling a la D.M.Vulis separates the tough and realistic from the fragile psyche and nascent censor! In the world of physical interaction, attacks or acts of vandalism are the components of evolutionarily stable (more or less) strategies of extortion and oppression. But in the world of information exchange, no such strategy is evolutionarily stable, and each attack is best regarded as an opportunity to up your tech and improve your capabilities while simultaneously defending against further attacks. :-) Z