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BY EVAN THOMAS

ANCHOR EMILY SPAIN

It’s the latest in a digital assault on Israel -- hackers have knocked national transport and stock exchange websites offline. Fox Business has the details.

“It sounds like a cyber war.... El Al, Israel Airlines had to take its website down after an alleged Saudi Arabian hacker network, which has been behind previous attacks, warned the site would be targeted.”

The Jerusalem Post says a hacker called “0xOmar” and a hacking group called “Nightmare” have claimed credit for the attack.

“The Tel Aviv Stock Exchange confirmed it was targeted and said it was subject to a denial of service attack (DoS), in which a server is flooded with hits, making it unavailable to other users.”

Those servers are still down as of Monday morning, at least for American visitors. A visit to the English version of the Tel Aviv Stock Exchange website coughs up an error message.

But it could be worse. The Next Web points out this attack only hit the companies’ websites, not their infrastructure.

“While the sites were taken down, the hack didn’t affect the actual business – neither [flights] or trading were interrupted due to the hack.”

But according to Businessweek, the cyberwarfare is still drawing praise from Hamas.

“The Palestinian Hamas movement called for an escalation of Internet hacking against Israel, saluting Arab programmers who have managed to infiltrate Israeli computer systems.”

This isn’t the first time 0xOmar has caused trouble for Israel. Last month the hacker released thousands of Israeli credit card numbers obtained in a cyberattack.