On the morning of October 7, 2023, Hamas began firing rockets at Israel - firing from 2.5 to 5 thousand rockets, 2.5 thousand militants entered the country. As a result, 1.4 thousand Israelis were killed, 3.3 thousand were injured, and 220 were taken to the Gaza Strip as hostages. The next day, the Israeli government announced that the country had entered a state of war. According to the unanimous opinion of Israeli and Western politicians and experts: the Hamas attack is the largest defeat of the Israeli intelligence services, which is comparable to the terrorist attack of September 11, 2001. Why did the legendary Israeli security system, on which billions were spent, turn out to be powerless against the paramilitary forces of one of the poorest enclaves in the world - Gaza Strip? Why did the military intelligence AMAN and the internal security service Shin Bet (Shin Bet) of Israel lose to Hamas and what did the legendary Mossad do? This and much more is discussed for the first time in this book.