The document discusses a proposed multi-stage secure clusterhead selection technique for wireless sensor networks using a discrete rule-set. The technique aims to securely select clusterheads during the data aggregation process and learn the nature of communications to gain knowledge about adversary intensity. It constructs primary and secondary rule-sets to filter and select secure clusterheads based on energy, neighbors, vulnerability, vicinity and distance from adversaries. Simulation results using MEMSIC sensor nodes showed the proposed approach reduces energy consumption and improves data delivery compared to existing methods.