i have the same issue too, xcode safari unable to launch, when open will report error : Exception Type: EXC_BAD_ACCESS (SIGKILL (Code Signature Invalid)) Exception Subtype: UNKNOWN_0x32 at 0x000000011c816ca8 Exception Codes: 0x0000000000000032, 0x000000011c816ca8 Termination Reason: Namespace CODESIGNING, Code 2, Invalid Page