The cyber security research is centered around the pressing problem posed by current generation cyber threats with emphasis on their detection, characterization and mitigation. The specific problems being addressed are security analysis of communication protocols; cyber threat simulation, real implementation and impact quantification; low-rate flooding DoS attacks; experimental implementation of IDS/IPS modules; and detection and tracking of worm propagation. The current emphasis is more on experimental research centered on the transport layer of the communication stack. The team is also working on design and implementation of programmable, reconfigurable and observable experimentation environment for experimental research in network and HPC.