Digital workspaces of several dozen high schools and colleges in Île-de-France have in fact been hacked and terrorist threats addressed to students and parents. A message announcing an explosive attack was sent to at least five high schools in Yvelines.

150 establishments out of 500 are already equipped with security measures, such as anti-intrusion alarms. There is also talk of cleaning up the surroundings of schools, in order to restore security outside certain educational establishments that drug traffickers have transformed into deal points.