The BBC has now spoken to these young women about the escalation in suspicious activity they observed, the reports they filed, and what they saw as a lack of response from senior Israel Defense Forces (IDF) officers.
We have also seen WhatsApp messages the women sent in the months before 7 October, talking about incidents at the border. To some of them it became a dark joke: who would be on duty when the inevitable attack came?
These women were not the only ones raising the alarm, and as more testimony is gathered, anger at the Israeli state - and questions over its response - are mounting.
