This document discusses network attacks in mobile ad hoc and wireless sensor networks that are relevant for PhD thesis projects using the NS2 simulator. It lists important MANET attacks like flooding, packet dropping, wormhole, black hole, and Sybil attacks. For WSN networks, it notes active attacks, DOS attacks, security attacks, sink hole attacks, and worm hole attacks are significant. Guidelines for PhD thesis writing using NS2 projects are provided, including avoiding chronological writing, using active voice, and clarity of diagrams. Contact details are given for the website that provides resources on thesis topics.