This course, taught by a security expert, will bring you up to speed on the fundamentals of PC and network security. Understand and explore the vulnerabilities of operating systems, software and networks. Get into the minds of hackers and crackers to develop an understanding of the exploits they use to access your computer without your knowledge. Find out why, where and how viruses, worms and blended threats are created. You'll be able to identify and work to prevent DoS, SYN flooding and other network attacks. Learn a safe way to share files and data across the internet through a virtual private network. You will be able to install and configure a firewall to build an impenetrable moat around your computer or network.