As long as people can get into the bunkers, so can the Israelis.
Fordu is completely self-contained, tight as a sub under 500-2,500 feet of rock.
They have over 100 kilos of 20%, enough for one bomb right now if they want to go to 90%+.
Once you get to 20% you only need 3 cascades and about 20 people in about three months to get to 90%.
They’ve thought of infiltrators.