It looks like several Israeli defense contractors were attacked by hackers a few years ago. This is bad news for the country and the U.S. because much of the stolen data had to do with some American missile technology and the "Iron Dome" system that defends Israel from missiles.
According to Columbia, Md.-based threat intelligence firm Cyber Engineering Services Inc. (CyberESI), between Oct. 10, 2011, and August 13, 2012, attackers thought to be operating out of China hacked into the corporate networks of three top Israeli defense technology companies, including Elisra Group, Israel Aerospace Industries, and Rafael Advanced Defense Systems.
Most of the stolen information had to do with "Iron Dome," missile technologies and unmanned aerial vehicles. Some of this information was provided to Israel by the U.S. and its defense contractors like Boeing.
The attackers were most likely the same Chinese military group that the U.S. has accused of stealing information from American companies and defense contractors. The U.S. has already brought charges against five members of the People's Liberation Army group, called PLA 61398.