The invention is a method sending a plurality of data from a server to a fleet of devices. The method comprises the following steps: splitting said plurality of data in a set of disjoint batches, uniquely allocating to each of said disjoint batches a time slot, identifying a selected data belonging to the disjoint batch which is allocated to the current time slot and sending the selected data from the server to one device of said fleet, and if an incident occurs at the server, discarding from the server the disjoint batch allocated to the time slot during which the incident occurred.