JERUSALEM, Israel --  Israel is working to build a "digital Iron Dome" to defend against increasing cyber-attacks, Israeli Prime Minister Benjamin Netanyahu said.  The Iron Dome is Israel's anti-rocket defense system -- the first in the world to be able to shoot down short-range rockets.

"There are increasing attempts to carry out cyber-attacks on computer infrastructures in the State of Israel. Every day there are attempts, even many attempts, to infiltrate Israel's computer systems," Netanyahu told his cabinet on Sunday.

The prime minister said that's why he established the National Cyber Bureau.

"It is working to block these attempts by developing what I would call a 'digital Iron Dome' for Israel to defend against computer terrorism," Netanyahu said. "Just as we have Iron Dome against missiles and a security fence against infiltrators and terrorism -- we will have a similar defense against cyber-attacks.

"But like building the fence, time is needed to complete it, and we are working on it nonstop," he said.

Netanyahu's remarks come as U.S. intelligence officials say they are more and more convinced that Iran is perpetrating a wave of network attacks that hit the Saudi oil industry and breached American financial institutions, the International Herald Tribune reported.