The group appears to be running Operation Israel alongside Operation Free Korea, which calls for democratic rule, an end to the nuclear program and uncensored internet access.
Turning its attention to Israel, the group has threatened to launch a cyber attack on Israeli websites on Sunday, 7 April on the eve of Holocaust Memorial Day.
In a statement, Anonymous said “elite cyber-squadrons” around the world will unite in solidarity with the Palestinian people to “disrupt and erase Israel from cyberspace”.
In a YouTube video, Anonymous makes further accusations, saying Israel has threatened to shut down the internet in Gaza.
"When the government of Israel publicly threatened to sever all internet and other telecommunications in and outside of Gaza, they crossed a line in the sand," a figure in a Guy Fawkes mask says.
Anonymous warns Israel not to shut down the internet in Gaza and to "cease and desist from your terror upon the innocent people of Palestine or you will know the full and unbridled wrath of Anonymous."
Read more about Anonymous
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- Anonymous threatens to declare cyber war on North Korea
- Anonymous uses Aaron Swartz suicide to call for copyright reform
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- Swedish government sites targeted by Anonymous
- Anonymous claims a million Apple IDs in FBI breach
- Anonymous hits UK government websites in support for Julian Assange
- Anonymous attacks: Three phases of an anonymous attack methodology
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- Feds announce Anonymous, LulzSec arrests
The government has warned staff that government websites are expected to face distributed denial-of-service (DDoS) attacks and attempts at vandalism, according to the Jerusalem Post.
The government is bolstering its usual cyber security measures, which include a firewall meant to deter DDoS attacks, the paper said.
Israeli radio has reported that a number of large organisations have closed their websites to prevent hackers from sabotaging them, according to the Financial Times.
The Israel Defence Forces, which recently formed a cyber warfare command, declined to comment on the threatened attack, saying it was “not a military matter,” the paper said.
Anonymous launched a wide-scale attack in November 2012 during Operation Pillar of Defense on hundreds of Israeli websites, taking some offline and defacing others.