PPT-Computer Network Security

Dr X Derived from slides by Prof William Enck NCSU Outline Network Attacks Command Line Lab OSI stack Networking Fundamentally about transmitting information between two devices Communication . Network Security. Chapter #1 in the text book ( Stallings). Introduction to Computer and Network Security. Computer security concepts. The OSI security architecture. Security attacks. Security services. Professor Sushil Jajodia. Center for Secure Information Systems. jajodia@gmu.edu. http://. csis.gmu.edu/jajodia. . Outline. Problem. Approach. Benefits. Challenges. The Perfect Storm. Network configurations are ever more sophisticated. AND . WAYS TO PREVENT HACKING. WHAT IS HACKING ?. Hacking is unauthorized use of computer and network resources. . The term "hacker" originally meant a very gifted programmer. In recent years though, with easier access to multiple systems, it now has negative implications.. &. CYBER LAWS . By. R K BAGGA. 2. “ 60% of networks are penetrated over 30 times a year ”. “ . On average, every site newly installed on the Web will be accessed within 28 seconds and attacked within 5 hours. 6. th. edition . Jim Kurose, Keith Ross. Addison-Wesley. March 2012. A note on the use of these ppt slides:. We. ’. re making these slides freely available to all (faculty, students, readers). They. 1. Page : . 2. Identify the challenges for computer and network security. Ten-fifteen years ago. Firewalls. , IDS, . anti-virus software. , OS update were rare. Now. Virus attacks. : every day. E-mail : scanned for suspicious attachments. EECS710: Information Security. Professor Hossein Saiedian. Fall 2014. Chapter . 24: . Wireless Network Security. Wireless Security Overview. C. oncerns for wireless security are similar to those found in a wired environment. Spyware and Adware . Spyware . Software that secretly gathers information about users while they browse the Web. Can be used maliciously. Install antivirus or antispyware software. Adware . Form of spyware . David Brumley. dbrumley@cmu.edu. Carnegie Mellon University. Today: Overview. Course Staff. Trusting Trust. Course Overview. Example Applications. Course Mechanics. CMU CTF Team. 2. You will find. a. EECS710: Information Security. Professor Hossein Saiedian. Fall 2014. Chapter . 24: . Wireless Network Security. Wireless Security Overview. C. oncerns for wireless security are similar to those found in a wired environment. EECS710: Information Security. Professor Hossein Saiedian. Fall 2014. Chapter . 24: . Wireless Network Security. Wireless Security Overview. C. oncerns for wireless security are similar to those found in a wired environment. Also privacy issues that are relevant to security may be discussed.. Security Is Big News. https://www.theregister.co.uk/security/. https://catless.ncl.ac.uk/Risks/. https://krebsonsecurity.com/. https://www.ctvnews.ca/canada/credit-card-skimmers-found-at-vancouver-transit-stations-1.4010396. EECS710: Information Security. Professor Hossein Saiedian. Fall 2014. Chapter . 24: . Wireless Network Security. Wireless Security Overview. C. oncerns for wireless security are similar to those found in a wired environment. The Security Problem. Program Threats. System and Network Threats. Cryptography as a Security Tool. User Authentication. Implementing Security Defenses. Firewalling to Protect Systems and Networks. Computer-Security Classifications.