I've been developing for Objective-C for some time now and one thing that really scares me is how easy it is to mess around with a compiled App and get information out using standard tools like the strings tool (here).
I've come around with some XOR based solutions to protect my strings that makes it more difficult to the average hacker to get into my program.
What else can I do to ensure the security in my sensitive strings?
Also, at runtime is it possible for me to check whether my App is currently being traced by a debugger or other debugging tool?
