The Networking and Security Group focuses on understanding the behavior, use, and abuse of today's Internet, and on exploring new technology, designs, and defenses for tomorrow's Internet. Researchers' interests range from network troubleshooting, characterization, performance, protocol design, software-defined networking, and fundamental architectural questions, to cybercrime, resisting censorship, analyzing privacy threats, manipulation of and attacks on social networks, forensics, and high-speed network monitoring in operational settings. The Group has strong ties to UC Berkeley, with two of its members holding joint appointments, and also maintains close collaborative ties with UC San Diego, Stanford University, and the Lawrence Berkeley National Laboratory. The Group also has numerous ties with start-ups and other businesses, allowing it to address topics of commercial and academic interest, and has been active in the Internet Engineering Task Force efforts to standardize Internet protocols, the Internet Research Task Force, and professional organizations and events such as ACM SIGCOMM and HotNets, USENIX Security, and IEEE Security and Privacy.