A Developer’s Guide to Responding to National Security Letters
So how does one verify the letter?<p>I propose a tl;dr version: get a lawyer.<p>Do not deal with it yourself. It's cool to read about how a company (with a team of legals) can respond to the letter. "A Developer's Guide" is not the same as "A Company's Guide". "A [d]eveloper" is an individual, not an organization entity.