They had a lot of intel, but thought an attack of such magnitude was beyond Hamas' capabilities: https://www.theguardian.com/world/2023/nov/28/israeli-military

They had a lot of intel, but thought an attack of such magnitude was beyond Hamas' capabilities: https://www.theguardian.com/world/2023/nov/28/israeli-military-had-warning-of-hamas-training-for-attack-reports-say https://www.theguardian.com/world/2023/nov/28/israeli-milita... Or: https://www.yahoo.com/news/women-spotters-said-hamas-preparing-164123674.html https://www.yahoo.com/news/women-spotters-said-hamas-prepari...