On May 1, 2012, at 6:04 PM, Eric Gorr <mail...@ericgorr.net> wrote:

> I found this old message:
> 
>    http://lists.apple.com/archives/cocoa-dev/2010/Mar/msg01042.html
> 
> in which stated:
> 
>    If you think this is going to help you avoid piracy, it's not. OS X
>    has a flag (PT_DENY_ATTACH) that the kernel checks for when a debugger
>    asks to attach to a process. If that flag is set, the kernel refuses
>    to allow the debugger to attach. iTunes famously does this to prevent
>    people from inspecting the operations of the DRM system. It's a
>    trivial matter to patch the kernel to not respect this flag, 
> 
> I was just wondering if this is still true or true in general...that it is 
> not possible to conceal an application from DTrace.

It is true and will be true as long as your are able to compile your own 
kernel. Think about it.

--Kyle Sluder
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