How to block deletion of a file under OS X?

Question

Cocoa

Good day!
An application in Objective-C, under OS X. While working, the user creates files from the application itself, which are then processed. It is necessary to make sure that during the operation of this application it is impossible to move or delete these files.
Via

NSDictionary *attributes = @{NSFileAppendOnly : @( 1 )};
    NSFileManager *fileManager = [NSFileManager defaultManager];
    error = nil;    
    [fileManager setAttributes:attributes ofItemAtPath:vUrl.path error:&error];

achieved a ban on renaming and nothing more.
Sandbox, of course, is used. Is it possible to somehow implement a ban on moving / deleting?

Answer 1

You can write a driver in (kernel mode) and hook file operations, but why do all this?