JERUSALEM, Israel -- A Saudi hacker named "OxOmar," bolstered by a team of pro-Palestinian hackers calling themselves "Nightmare," compromised the Tel Aviv Stock Exchange (TASE) and El Al websites over the weekend.
Both sites were taken offline overnight Monday, but TASE was back up by early morning. The Israeli national airline's website, El Al, remained offline at midday, The Jerusalem Post reported.
A spokesman for TASE said the attack did not affect trading, which is not dependent on the website.
El Al released a statement acknowledging the newly launched cyber war "against the State of Israel," and said it is taking the appropriate "safety measures" to safeguard its website.
Several Jewish hackers promised to retaliate, with one named Hannibal saying he had 30 million Arab email addresses and passwords that he plans to publish online and directing web users to a list of servers.
Meanwhile Hamas, the Palestinian faction controlling the Gaza Strip, applauded the weekend's attacks.
"The penetration into Israeli websites opens a new front of resistance and the beginning of an electronic war against Israeli occupation," Gaza-based Hamas spokesman Sami Abu Zuhri told the press on Sunday.