In his current role, Mr. Hallenbeck provides technical leadership to personnel in Network Analysis and Digital Analysis in addition to directly overseeing the Incident Response Team's deployments. He is responsible for providing technical mentorship to a cadre of employees who monitor, analyze, evaluate, and respond to network security anomalies across the unclassified Federal Executive Branch network sensor grid and established Critical Infrastructure and Key Resource Sectors. In 2014 he has passed the 5 year mark for service at DHS. Prior to joining US-CERT, Mr. Hallenbeck worked for RSA Security and EMC as a security engineer in their then fledgling Consumer Solutions Division. Previous to RSA Mr. Hallenbeck worked for 6 years at AOL first as a systems administrator then as part of the AOL/TW global incident response team. When not chasing electrons, Mr. Hallenbeck much prefers to be someplace tropical 50-100 feet under the water.