Before Natasha set out, Su Ming simply found a typewriter and began drafting several of Leviathan's plans right there in the suite. He placed the typed documents on different Background Characters and had Black Widow photograph them with a miniature camera. When she "fled," she would carry only the miniature film rolls.
This would prevent Fury and the others from verifying the details of the originals, while also ensuring that as long as even part of the documents checked out, it would prove Natasha's reliability.
Of course, she would inevitably be detained for a while, but there were already quite a few Spider Web girls within the Logistics Directorate. Natasha's life would be absolutely guaranteed.
Those Spider Web agents would not deliberately climb the ranks. Not every agent's mission required them to become upper management.
The proper approach was to ensure that every level of the future S.H.I.E.L.D. had their own people. That would guarantee broad intelligence coverage: some would infiltrate the scientific departments, some would focus on administrative departments, others would infiltrate combat teams, and there would even be people specifically assigned to counterintelligence.
Yes, the more an organization dealt in espionage, the more attention it paid to building up its own counterintelligence department.
"All right. We can't give them too much bait at once. Use the Red Guardian and Echo Plan as your credentials first. Stop by Spider Web headquarters and pick up a dose of Leech Serum, but don't worry. It has been modified by Adjutant, and with this world's current scientific capabilities, it cannot be replicated."
After photographing the documents on the table, Natasha casually flipped through a few pages before tossing them into the fireplace.
"Are these real? The Red Guardian Program and the Echo Plan?"
Su Ming nodded. These might have been classified secrets