Anonymous posted a list of over 650 Israel-based websites it says it has taken down or defaced since last week.
The Stuxnet virus was originally developed to disrupt Iran’s nuclear programme.
US and China have stepped up spying on each other.
Computer-based network attacks are slowly bleeding US businesses of revenue and its market advantage. Even the government faces the prospect of losing in an all-out cyberwar, experts told US senators in a hearing.
Day in Pics: 25th October
Showbiz World - October 25, 2014
'Happy New Year' star cast perform in Washington