A hacker network that claims to be based in Saudi Arabia paralysed the websites of Israel's stock exchange and national airline on Monday, escalating an international cyber war that has jolted this security-obsessed country.
Neither website contains sensitive information and trading and flights were not affected. But the ongoing salvos by hackers who use anti-Israel language in their posts has revealed how vulnerable Israel is to cyber warfare, despite its sophisticated computer security units in the military and advanced high-tech sector.
The attacks began earlier this month when hackers identifying themselves as group-xp, a known Saudi hacking group, claimed on an Israeli sports website to have gained access to 400,000 Israeli credit card accounts. The group called it a "gift to the world for the New Year" designed to "hurt the Zionist pocket."
Israeli authorities said 15,000 accounts were hacked in that episode. On Monday, El Al Israel Airlines took down its website after hacker OxOmar, who has been linked to the Saudi group, warned that both sites would be targeted by allied pro-Palestinian hackers, a person close to the company said.