[user3939382]

I still do this on my iPhone. As long as you keep the bit count the same i.e. changing 12 points to 99 the code signing passes and you don’t need to do anything but edit the hex.

[Thorrez]

It sounds like you're saying iPhones have an easily exploitable code signing vulnerability. It's that correct?

[andreareina]

That sounds more like a data format with length-prefixed fields.

[mechanical_bear]

Could you provide some more detail? Sounds interesting.