Pro-Palestinian hackers brought down Haaretz's Hebrew website on Wednesday, after several Israeli websites were targeted earlier in the day.
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Haaretz Hebrew website was brought down in a distributed denial-of-service (DDoS) attack, as a cyber war between pro-Israeli and pro-Palestinian hackers continued.
In a Twitter message, Anonymous Palestine claimed responsibility for the attack: "haaretz.co.il Tango Down :)".
The hackers promised to continue the attack on Israeli websites and in fact, several hours later, the website of Israel Hayom newspaper was also paralyzed, with the hackers tweeting a similar message, "israelhayom.co.il tango down!"
The attacks saturated the websites' servers with information such that it could not respond to legitimate internet traffic.
The websites of two Israeli hospitals were also brought down earlier Wednesday.
According to the Sheba Medical Center, Tel Hashomer, the Mossad identified multiple attempts to break into the hospitals website, similar to previous cyber attacks on websites of important Israeli institutions.
As a result, Shebas website was paralyzed for several hours, saying that its security system is attempting to identify the source of attack the problem in order to block threatening activity.
The Sheba website, as well as that of Assouta Medical Center, Tel Aviv were able to be fully recovered, however, the extent of the damage caused to the patients personal files has yet to be seen.
Also on Wednesday, the website of the Israel Festival was brought down. Pro-Palestinian hackers wrote "Free Palestine" in several parts of the site, and featured an image of the Israeli and American flag burning.
The cyber war kicked off in early January, when a hacker calling himself "OxOmar" published online the credit card details of thousands of Israelis, after breaking into what he said were more than 80 Israeli servers.
He said he was then joined by a group calling itself Nightmare, and went on to paralyze several Israeli websites, including that of the Tel Aviv Stock Exchange and Israel's El-Al International Airlines.
Pro-Israel hackers, for their part, published the log-in details of 20,000 Arab Facebook users, and said they had taken down websites in Saudi Arabia and the United Arab Emirates.