Israeli media reported on Monday that the Anonymous Sudan hacker group carried out a massive cyberattack against several Israeli occupation government websites.

The media indicated that Mossad's website was one of the top sites targeted by the cyberattack, in addition to the so-called "National Insurance Institute" and several Israeli other government websites.

Maariv newspaper reported that the Anonymous Sudan hacker group said on its Telegram account that it had taken down two central Israeli government websites through a denial-of-service (DoS) attack.

"This attack is preparation for a major one," the Israeli newspaper cited the hacker group as saying.

In mid-April, Israeli media reported that the same group carried out dozens of cyberattacks against the Israeli occupation.

Maariv said Anonymous Sudan, which plays an active role in cyberattacks against "Israel", carried out dozens of cyberattacks against Israeli websites.

On its part, "Israel" Hayom reported that Distributed Denial-of-Service (DDoS) attacks disrupted a number of well-known Israeli websites.

According to the news website, the hackers said they accessed some remote servers of two small companies and two water monitoring systems and published a military map of the so-called "Kissufim" region.

The website highlighted that during the two days that witnessed the commemoration of International Al-Quds Day, about 60 cyberattacks were reported, including the downing and sabotaging of websites.

It also cited reports about cameras and water monitoring systems being hacked and databases of small sites being seized.

"Israel" Hayom also cited the American-Israeli cyber security company, Check Point, as saying that "the scale of the attacks and their severity are greater than in previous years, and in some cases, much more powerful tools were used than those seen in previous years." 

In addition, Israeli media reported that the "Israel" Postal Company had been subjected to cyberattack attempts against its infrastructure, prompting the company to announce suspending part of its work systems in order to prevent similar attacks.