Layered Security in Plant Control Environments

It is not uncommon to find various organizations complaining about security flaws in their information systems. Failing to prevent or mitigate the security flaws may lead to system breakdown, errors, and loss of crucial information. This is why it is important for users of information systems to find the right solutions that can help counter and mitigate security flaws. One common problem with security flaws connected with information systems or networks is that the security flaws occur in multiples. Technological advances have, fortunately, made it possible for people and organizations to prevent and detect such security flaws using security strategies. Layered Security and Defense in Depth are two strategies that can help prevent attacks and protect information systems against security flaws. The two strategies are similar but are based on completely two different concepts. This paper compares and contrasts the Layered Security and Defense in Depth Strategies by explaining how each of the two functions. Additionally, the paper includes an explanation about the advantages and disadvantages of the two strategies.

A computer is secure if you can depend on it and its software to behave as you expect I this assignment I will writer about how Linux provides security to you information. The major technical areas of computer security are usually represented by CIA confidentiality, integrity, and authentication or availability. It means that information cannot access by unauthorized people.

Defense in depth identifies the need for many security layers to be utilised in defense of the system from the bottom as physical security to the top as Data security.

Security is almost certainly the most difficult aspect of a network to perfect. It is important to have the correct procedures and components in place to make certain network security is being accounted for and addressed on any given network. The journal, “Future Generation Computer Systems” elaborates on this necessity for an information system. “Future Generation Computer Systems”, this component of a network is discussed thoroughly. “Essentially securing an Information System (IS), involves identifying unique threats and challenges which need to be addressed by implementing the appropriate countermeasures” (Dimitrios Zissis, Dimitrios Lekkas, 2012). This was achieved through configuring access lists as well as CHAP configuration on the routers connecting to the edge

This paper serves to direct the development team along a pathway of security, with the intent to share information about the most secured manner to implement this project. It must first be acknowledged that for information to be secured, information security must be integrated into the SDLC from system inception. The early integration of security in the

Conklin, W. A., White, G., Williams, D., Davis, R., & Cothren, C. (2012). Principles of computer security: CompTIA Security+™ and beyond (3rd ed.). New York, NY: McGraw Hill.

Due to the time restraint and the increasing focus on vulnerabilities in your security structure, this document only covers four of the areas that will eventually have written security policies.

Preventive controls can be as simple as locks and keys to access sensitive areas of a building, clearances to access classified data, or the use of complex passwords with encryption. Detective controls can be as simple as cameras or motion detector systems in a building, or, as complex as a network intrusion detection system (NIDS) on the network. Corrective controls, usually combined with preventive and detective controls, help reduce the damage once a risk has manifested. This can be done by performing regular backups in the event of a system crash. Below is an illustration (Figure 4-1) of the three main types of security

Miller Inc. which is in the business of providing data collection and analytics services relies majorly on network security to keep its competitive advantage. This is because the customers that rely on the company's system trust that since there are sufficient security measures that have been ensured, they can store their data securely. Each of the functional models of the system should have sufficient security measures to ensure that complete security of the whole system architecture is achieved. The three functional modules are the backend module, services or operation module and customer access module. The major relationship between infrastructure and security comes in the role they play to ensure that the end user gets the data that they need when they need it and in the best way possible. Therefore for the three modules, there is a need to balance security with the right infrastructure.

Identification of controls already in place – including policies, firewalls, applications, intrusion and detection prevention systems, virtual private networks, data loss prevention and encryption.

There are four broad areas of computer misuse: theft of computational resources, disruption of computational services, unauthorized information disclosure, and unauthorized information modification. These four areas correspond to threats to IT security. The first two categories correspond to threats to availability; the third corresponds to a threat to confidentiality; and the fourth to the integrity of the information.

Identify and describe the six components of an information system. Which are most directly affected by the study of computer security? Which are most commonly associated with its study?

Organizations must consider some type of multi layered security which will focus on confidentiality, integrity and availability on the information that in being secured. A layered approach

1. How can a security framework assist in the design and implementation of a security infrastructure?

Network security has had to adapt increasingly quickly, in order to keep up with the new ways that users and back-end systems work. Mobility and variety are currently on the increase at both sides of the enterprise network. At the outer edge, users are operating a growing range of hand-held computing devices. At the inner edge, virtualized servers, new storage devices (NAS and SAN), and data backup mechanisms are replacing what used to be a simple cluster of static servers. Both user needs and business needs are adding new requirements to the list of features that a network must support. New personal computing devices, with modern operating systems and brand new capabilities, are materializing at an exponential rate. Almost as quickly as a new technology is invented – even one that previously seemed like fantasy, for example making a video call wirelessly while walking around a building – it becomes a necessity. The era of static desk-bound PCs, running a prescribed OS image and a prescribed set of applications, has passed. The enterprise network must now be a more open platform.