> it's not unthinkable that with more details, 3rd parties could figure out how to get in too. This sounds like a misunderstanding. No clever third parties are

> it's not unthinkable that with more details, 3rd parties could figure out how to get in too. This sounds like a misunderstanding. No clever third parties are going to find a way to break code signing. To exploit the security hole Apple already created would require having Apple's signing certificate so that a phone could install the code. If it wasn't for the certificate, it would be quite a bit more trivial to hack a firmware to do a malicious thing and install it on any phone.