• A computer virus is a program or piece of code that is loaded onto your computer without your knowledge and runs against your wishes. They have the ability to replicate themselves to the point of using all the available memory, slowing the machine or bringing down the system. All computer viruses are man-made. An even more dangerous type of virus is one capable of transmitting itself across networks and bypassing security systems. Type of Virus • File infecting virus This type of computer virus
Operating System Architecture By gaining control of computers, computer viruses, worms, trojans, software bugs, and bad people can create extraordinary damage by shutting down infrastructure, using online banking to steal money, or using robots to attack people. Our civilization is increasingly depended on computers for survival. Therefore, a fully secure operating system is essential for the society. Below is the architecture by which maximum security against viruses and other threats can be
SCADA, or often referred as Process Control Systems (PCS) is interpreted as an overall collection of control systems that measures, reports, and changes processes SCADA is the acronym of Supervisory Control and Data Acquisition, which is a communication technology scheme for collecting data from distant facilities and also controlling them on control systems. In the beginning SCADA system was locally introduced, and it has been applied to larger and wide-area systems as the information technology
isolation, which lead to a poor quality of life (Dekker, 2007; Sampson 2012). Many Western countries are trying to both approach and arrest these problems by designing area-based improvement policies (Gade, 2001; Andersson & Musterd, 2005). Before such programs can be implemented, however, one must be aware of which factors may be involved in the problems present in disadvantaged neighborhoods. Although research in this field suggests that there are many factors responsible for the above mentioned problems
using an IPX network 2. Setting up an IPX game 3. Troubleshooting 1. Playing Diablo using an IPX network We recommend that you print this document for easy reference. The IPX multiplayer feature requires an IPX-compatible network (Peer to Peer or Client/Server) and allows for up to four players to play Diablo at once. In addition you are able to join or leave a game in progress at any time. If you are unsure as to whether or not you are connected to an IPX-compatible network, we recommend
make up the OSI model: physical, data link, network, transport, session, presentation, and application. This paper will cover the type of security that is associated with each level of the OSI model. Physical Layer The physical layer is where the actual communication occurs between devices. The security of the physical layer pertains to the actual hardware. The vulnerabilities of the physical layer include: Power outage Environmental control loss Hardware theft, damage or destruction
who's run a network operations group knows the frustration that accompanies management inquiries about “our network strategy.” To be successful, a strategic network plan must define the services the network will offer the line operations of the business. Network, in computer science, techniques, physical connections, and computer programs used to link two or more computers. Network users are able to share files, printers, and other resources; send electronic messages; and run programs on other computers
threats and require annual information security training for each employee. Procedure A true security program includes an Asset Identification & Classification Policies, therefore, identifying and categorizing, tracking and managing assets require one to create and implement an inventory control list according to the recommendation outline in NIST 800-53 Rev. 4 Security and Privacy Controls for Federal Information Systems and Organization. Guideline The classification of assets in accordance
early years of computer and network research and development many systems were designed by a number of companies. Although each system had its rights and were sold across the world, it became apparent as network usage grew, that it was difficult, to enable all of these systems to communicate with each other. In the early 1980s, the International Organization for Standardization (ISO) recognized the need for a network model that would help companies create common network implementations. The OSI reference
is any electronic or mechanical part you can see or touch. Software is a set of instructions, called a program, which tells the computer what to do. There are three basic hardware sections : the central processing unit (CPU), memory and peripherals. CPU Perhaps the most essential hardware component is the central processing unit. It is built into a single microprocessor chip which executes program instructions and coordinates the activities that take place within the computer system. In a way, it is
A network is a collection of entities that exchange information or good. Few examples of networks are nervous system, traffic light system, railway system etc. Computer Network is normally known as a system of interconnected computers & communication devices that can communicate with one another and share resources. At the most elementary level computer consist of two computers connected with each other by a cable to allow them to share data .A device connected to a network is called a node. A node
asset, while a vulnerability is a weakness or gap in a security program that can be exploited by threats to gain unauthorized access to an asset. Threats include spyware, malware, adware companies, organized crime, and disgruntled internal employees, all of which are also referred to as
system access controls Access control determines allowed activities of legitimate users, mediating every attempt by a user to access a resource in the system and prevent unauthorized users to access the system. It requires unique user identification, emergency access procedure, automatic log-off, and encryption and decryption of data. Some common types of access control include: User-based, Role-based and Context-based access control with the strongest security on Context-based access control. “LaTour
SLIP is a TCP/IP protocol used for communication between two machines that are previously configured for communication with each other. For example, your Internet server provider may provide you with a SLIP connection so that the provider's server can respond to your requests, pass them on to the Internet, and forward your requested Internet responses back to you. A better service is provided by the Point-to-Point Protocol (PPP). Point-to-Point Protocol is a protocol for communication between two
It is most widely known for delaying Iran’s nuclear development program by disabling the control systems for their nuclear centrifuges. The W32 stuxnet was discovered in June 2010 on approximately 100,000 hosts spanning over 25 nations including the U.S. and Russia (see fig.
Society today tends to fixate on and gravitate to television shows. Certain people even believe some of the families depicted on these shows are what a normal family should be. There are two types of television networks, broadcast and cable. Broadcast television stations are the channels that air for free, while cable you pay a subscription for. While television is a great platform for various issues and ideas, I believe that most broadcast television stations’ depictions do not accurately represent
technical innovations for the benefit of AT&T and its customers by implementing next-generation technologies and network advancements in AT&T's services and operations. Vision: The AT&T worldwide system was born of the resourcefulness of AT&T Labs networking authorities who made divergent systems work together. When compared with all other measures AT&T is world speed and trusted global network. To gain such achievements and maintaining leadership qualities company focuses on key elements like planning
intelligence is steadily progressing its importance in business, creativity, and labor efficiency. To understand the growing role of artificial intelligence, it is important to understand where it began and where it is headed. While the fictionalized network of millions of interconnected and omniscient robots is easy to visualize, it is not how artificial intelligence truly exists in reality. Although there is no official classification of the different types of artificial intelligence
1. DRAWBACKS OF TRADITIONAL NETWORK DEFENSES We have seen the most widely used methods of attack and defenses the current network security employs. This begets the question: Why a new method of security? The answer is that the above mentioned methods have disadvantages that cannot be ignored: 1.1 . ACCESS CONTROL LISTS i. Access lists are great for doing simple filtering and security for basic networks. However, there are some things to keep in mind when building and implementing them. First, the
copyrighted materials, spamming, impersonating and extorting money (ransomware). It is a cybercrime operated by crackers. Indeed, crackers are individuals who break into computers and networks for criminal purposes. Consequently, cyber security is a major concern of computing systems. Malware is defined as “a program that is inserted into a system, usually covertly, with the intent of compromising the confidentiality, integrity, or availability of the victim’s data,