Even the CIA's leaked internal PowerPoints look fairly similar to what you'd get in the valley, for the most part. The budgets big but - especially for defensive operation - it's the same kind of thing most other people do in that sector.
For offensive work, then the motto (of one of the NRO's satellites) comes to mind: Doing god's work with other people's money. Everything is tapped, we should assume at least a proportion of what we take for granted now is unsafe. It's unlikely they'll have broken any big fry protocols or schemes but planting a backdoor is trivial for them (if you can manipulate the entropy on 10% of computers so you should be able to crack it 10 years, think of all the kids you could save!).
For offensive work, then the motto (of one of the NRO's satellites) comes to mind: Doing god's work with other people's money. Everything is tapped, we should assume at least a proportion of what we take for granted now is unsafe. It's unlikely they'll have broken any big fry protocols or schemes but planting a backdoor is trivial for them (if you can manipulate the entropy on 10% of computers so you should be able to crack it 10 years, think of all the kids you could save!).