The FBI has some good material on this subject[1] and specifically permits you to disclose the NSL to your attorney so that you can comply with it. Something i

The FBI has some good material on this subject[1] and specifically permits you to disclose the NSL to your attorney so that you can comply with it. Something important to understand is that non-disclosure is not an automatic feature of the NSL, but that disclosure binds the parties to the terms in the NSL. [1]: https://vault.fbi.gov/National%20Security%20Letters%20%28NSL%29/National%20Security%20Letters%20%28NSL%29%20Part%201%20of%201/view https://vault.fbi.gov/National%20Security%20Letters%20%28NSL... > Secondly, the FBI can serve an NSL to the CEO, a separate one to the CISO, and so on down the chain to the tech people whose job would be to fulfill the order Yes, they can, however that's not what happens. The general council may advise the CEO to disclose certain requirements or aspects of the NSL to the CISO or to other parties for the purposes of complying with the NSL. They will almost certainly not recommend disclosing or distributing the NSL "down the chain to the tech people".