Break the wall for the security expert to fix? (Score 1)

Unless you are jailbroken, what's the point of security software? There is one source of infection: App store. However all apps are screened down to source code level. Malware-free is an one of the important user experience. Giving out security SDK only benefit security software vendors in creating a new market but in return it is impossible to protect from SDK leaking out to hacker who will have more information on vulnerabilities. Maybe we can argue that malware can break into iPhone from outside. But firstly it is mostly through buffer overflow which require good understanding of the non-Intel-based iPhone processor. More importantly the limitation on multi-tasking prohibited virus to spread inside the phone. So, only very sophisticated malware can spread and the odd is very very small.