> An NSL compels you to say nothing. Is that true in this case? My understanding is that NSLs are a subpoena with an accompanying gag order _about the subpoena

> An NSL compels you to say nothing. Is that true in this case? My understanding is that NSLs are a subpoena with an accompanying gag order _about the subpoena_. I haven't heard of a case where an NSL was used to restrict speech in the manner you're suggesting. In other words, I believe an NSL could be used to hide government interest in such a breach, but not to hide the fact of the breach. This is one of the main differences between the US and UK approach to classified information; there's no official secrets act in the US.