Potential leak of data: Simple PIN code

Detected 1 occurrence(s) of ‘^\s*pin[code]*\s*(:|=|is|was)\s': NSString* pin = @"somthig"; [[NSUserDefaults standardUserDefaults] setObject:pin forKey:@"TokenPin"]; NSString* pin; pin = (NSString*)[[NSUserDefaults standardUserDefaults] objectForKey:@"TokenPin"]; Retrieving NSUserDefaults *prefs = [NSUserDefaults standardUserDefaults]; // getting an NSString NSString *myString = [prefs stringForKey:@"keyToLookupString"]; // getting Source: http://pastebin.com/raw.php?i=gc53Xjh0