"The Iron Dome that the Shin Bet is developing in cyberspace is already taking its first steps, the array of alliances is emerging and it has already come into action," Israeli media quoted Bar as telling the annual International Cyber Week conference hosted by Tel Aviv University.
"We are already cooperating with a number of significant countries in the field and we see the global cyber iron dome beginning to take shape."
Bar said that the agency was effectively using AI technology to prevent terror threats, adding that "the AI technology was assimilated into the Shin Bet's countermeasures machine naturally."
"We identified a significant number of threats using AI ... In order to make sure that AI will lead to evolution and not revolution, we will need cooperation and openness between the technology giants and the security agencies," he said.
The chief added that the agency realized it was impossible to "win this war with sticks and stones."
"We are in the depths of the network and see very well what is happening in it: espionage, terrorism, incitement, and foreign influence. The network, like the terrorists' nests in Jenin and the terror tunnels in Gaza, is not a safe space for our enemies," he said.