Probably the phrase "you hold the keys to your clone" should give anyone pause.

I once worked at a company where the head of security gave a talk to every incoming technical staff member and the gist was, "You can't trust anyone who says they take privacy seriously. You must be paranoid at all times." When you've been around the block enough times, you realize they were right.

You can guarantee you won't be hacked? You can guarantee that if the company becomes massively successful, you won't start selling data to third parties ten years down the road?