IDF intel. saw Hamas using hundreds of Israeli SIM cards in Gaza before Oct. 7
The fact that so many Hamas members were switching to Israeli SIM cards could have been strong evidence of a potential invasion.
Smoke rises as seen from the broken fence in Kfar Aza where Hamas terrorists entered during the October 7tattack, in southern Israel, November 5, 2023(photo credit: EVELYN HOCKSTEIN/REUTERS)Updated: 
