According to declassified information, Israeli intelligence services captured data on the operation of hundreds of Israeli phone SIM cards simultaneously in the Gaza Strip near the border with Israel, hours before the attack was launched.

The aim of this step is for the Hamas attackers, who activated the chips, to be able to communicate with each other inside Israel after crossing the border to launch their attack.

If this information is correct, Israeli media considered it an “ignored sign” that an attack might be carried out.

The Israeli army and the General Security Service (Shin Bet) defended themselves, in a statement in which they said that these reports were “misleading.”

The statement spoke of monitoring "only dozens" of communications SIM cards that had been activated, noting that "this was not the first time such movements had been monitored."

This information would hold the Israeli army and intelligence services a large part of the responsibility for allowing Hamas to launch the attack, which led to the death of 1,200 people and the taking of about 250 hostages inside the Gaza Strip, and ignited the war in the Gaza Strip.

Days after the start of the war, Benjamin Netanyahu's office confirmed that the Prime Minister did not receive early warning about the sudden Hamas attack, and did not receive an initial update until after it was implemented.