By Joe Miller
The BBC has seen evidence that appears to confirm hackers stole several secret military documents from two government-owned Israeli companies that developed the Iron Dome missile defence system.
The breaches were first publicised by security blogger Brian Krebs on Monday.
The companies denied their classified networks had been infiltrated.
However, the team that discovered the incidents has given the BBC access to an intelligence report, which indicates hundreds of files were indeed copied.
The documents, which were stolen over a period of many months, relate to:
- Arrow III missiles
- unmanned aerial vehicles (UAVs), commonly known as drones
- ballistic rockets