Its more nuanced than that. Didn't read the book completely but read a long report. What I remember:
- They got exact hardware details and topology of the centrifuges somehow.
- They've stolen Realtek's driver signing keys.
- The virus looks like a simple worm which can infect other USB devices and doesn't unpack beyond a certain point if it can't find the SCADA equipment and the correct device ID & topology (It's like a homing cruise missile which looks like an RC plane from distance until it finds its target).
It's possibly the most sophisticated hacking campaign when social and technical aspects combined.
- They got exact hardware details and topology of the centrifuges somehow.
- They've stolen Realtek's driver signing keys.
- The virus looks like a simple worm which can infect other USB devices and doesn't unpack beyond a certain point if it can't find the SCADA equipment and the correct device ID & topology (It's like a homing cruise missile which looks like an RC plane from distance until it finds its target).
It's possibly the most sophisticated hacking campaign when social and technical aspects combined.