Thats a major attack on the US.

If your systems are compromised and need to coordinate, what do you even do if you can't trust anything, assuming the attacker is still inside the network?

> If your systems are compromised and need to coordinate, what do you even do if you can't trust anything, assuming the attacker is still inside the network?

That's a problem regular companies need to write up a plan for (but most of them probably don't put too much effort into it).

Even with the descend into incompetence the USA has been pulling for the past few years, I still expect the FBI to have a plan for exactly that sort of compromise.

In general, most governments have standard operational policies that mitigate such issues (ISO 15408.) =3

Is it, though?

If the goal is to exfiltrate data, I guess it is. If the goal is to make the people working in the FBI feel vulnerable - and pushing out this sample data would suggest that it is - I don't think it is. You could probably do the same with data from social media sites and data brokers.