Do you have a source for this? Spying sounds like a pretty interesting job if you can make something similar to FANG.
They also fund startups which may be used for national interests and so on.
Much of the time, they contact you, not the other way around.
Lived and worked in D.C. and have a TS/SCI, sat for FSP…. The IC doesn’t pay even close to big tech rates. There is also no mystery around someone contacting you, just apply to the NSA / CIA / etc. if those paths pique your interest.
Startups working on IC-relevant tech getting funding via non-traditional means is absolutely true but not guaranteed.
That was 30 years ago, though. Could be completely different now.