We‘ve been among those critical of the White House for the administration‘s dangerous policy of not revealing security vulnerabilities it discovers, as it seeks to exploit them. In trying to respond to some of the criticism about this policy, the White House has put out a blog post by White House Cybersecurity Coordinator Michael Daniel, in which he explains how the intelligence community determines whether to withhold a vulnerability… or hoard it for its own use. He lists out three potential reasons for not disclosing: