Israel is receiving lessons in cyberwarfare as hackers continue to target their corporations and infrastructure—on Monday, hackers slowed (but did not break) the website for the Tel Aviv Stock Exchange and El Al Israel Airlines took down their website after hacker, 0xOmar, who has been linked to the Saudi hacking crew group-xp, warned that it and the stock exchange would be targeted.

Orna Goren, a spokeswoman for the Tel Aviv Stock Exchange told the Associated Press that the Tel Aviv Stock Exchange website had been overwhelmed by electronic requests—most likely a DDoS attack—that slowed it down dramatically. However, she added, that trading was not affected; only the ability for onlookers to receive information quickly from the website.

Group-xp has been cited as the hackers involved in pilfering over 400,000 credit cards from various businesses in Israel in early January 2012. While most of the numbers stolen in that attack had been expired already, a number of them were still active and had to be disabled. The Israeli financial sector and government are still investigating this attack from two weeks ago. These hacks accompanied further threats against Israeli infrastructure by Saudi hackers.

“Right now, we’re not seeing anything that’s especially interesting or especially dangerous,” said Gadi Evron, former head of Internet security for the Israeli government.

Cyber security experts have explained that Israel is a common target for hackers with pro-Palestinian leanings or those who oppose the Jewish state. To date, there have been no reports of any sensitive Israeli government sites being hacked. Insofar the soft targets have all be in the private sector.

As an interesting development, the hacking news has lead to a linguistic problem in regards to Israel’s state radio. Like the French government, Israel dislikes using borrow-words from English to describe computer jargon and as a result has called for the use of a different word than “hacking” in its Hebrew broadcasts. Instead the radio’s linguist has insisted that reporters use the Hebrew word, “patzchan,” meaning someone who cracks something open, instead of “hacker.”