Occam's razor suggests that they were to go to that much trouble, it would be much easier to just keep the data and pretend to delete it. But there are very so

Occam's razor suggests that they were to go to that much trouble, it would be much easier to just keep the data and pretend to delete it. But there are very solid reasons that isn't what they would do (see "It's impossible to keep a secret of that scale in a 100,000 person firm").