Like most Apple fan boys....you have it wrong..
Apple is no more or less secure than windows in terms of data theft..or breaches..
Granted, windows XP is not secure today and has not been supported for a long time. Anyone still using it is not very bright...IMO..
But neither are the old Apple OS’s...
There's no indication the data is needing to be restored because of a virus, or that there has been any identity theft.
How about just leaving the thread to people who might be able to actually get the data restored and his system back up and running. If you need a thread to indoctrinate the unwashed in the Dogma of Apple, start one instead of hijacking this one.