IT Security Planning & Implementation
Information systems have always been complex over their existence. The same has been true of securing those networks and systems. However, with the growing complexity and capabilities of these machines and networks, the security implications and possibilities of just what level of depravity that hackers will stoop to. This report shall explain the basics of information technology equipment and security as well as the threats that exist to the same. These threats include worms, viruses, Trojans, spyware, adware, zero-day attacks, hacker attacks, denial of service attacks and data interception or theft.
Typical computer networks are made up of a series of workstations and other devices. The devices that might exist are workstations, servers, printers, firewalls, switches and routers. The different pieces of equipment that exist might or might not be network-enabled or even capable of networking at all. Some devices only communicate through USB while others can…...
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References
Avalle, M., Pironti, A., & Sisto, R. (2014). Formal verification of security protocol implementations: a survey. Formal Aspects Of Computing, 26(1), 99-123.
doi:10.1007/s00165-012-0269-9
Desai, D. (2013). Beyond Location: Data Security in the 21st Century. Communications Of The ACM, 56(1), 34-36. doi:10.1145/2398356.2398368
Holt, T.J., & Schell, B.H. (2013). Hackers and Hacking: A Reference Handbook. Santa Barbara, California: ABC-CLIO, LLC.
Data destruction is when an attacker goes in and starts deleting things (Curtin, 1997).
There are a number of ways that a company's network can get attacked. One being if you have a single component to provide security, an attacker only has that one thing to get around in order to gaining full control of your system. Also not having secure modems can give access to unwanted attacks. However, these are evolving every single day. The first one being shortened ULs, a Shortened UL nickname can be handy, but pose risks. Since they give no hint of the destination, attackers can exploit them to send you to malicious sites. Then it discusses data harvesting of your profile. This is when an attacker collects enough information to access your sensitive accounts. They do this by the information you share on social networks, such as your high school, hometown, or birthday, which…...
Network Security
This report is the answer to a scenario that was provided as the basis for this assignment. The idea is that a security firm has been awarded a contract for a local government agency. As part of that contract, the author is being asked to provide a number of deliverables. These would include an information flow diagram, an equipment list that would be required so as to make up the network security infrastructure, a maintenance plan to keep the network running and operating in optimal fashion, a list of at least four security measures that could be developed, two physical security vendors that could be used and how human resources could and should figure into all of the above. While there are multiple ways to undergo a network security system plan, there are some options and paths that are more required than others.
Analysis
The network information flow diagram that was…...
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References
Brown, M. (2012). Who makes the best 802.11ac router? We review the only 5 models available today. PCWorld. Retrieved 25 November 2017, from Concept Draw. (2017). Network Security Devices. http://www.conceptdraw.com. Retrieved 25 November 2017, from http://www.conceptdraw.com/How-To-Guide/network-security-devicesGov.UK. (2017). [Withdrawn] Browser Security Guidance: Google Chrome - GOV.UK. Gov.uk. Retrieved 25 November 2017, from https://www.gov.uk/government/publications/browser-security-guidance-google-chrome/browser-security-guidance-google-chromeITCS. (2017). Cisco ASA vs WatchGuard XTM | IT Central Station. Itcentralstation.com. Retrieved 25 November 2017, from https://www.itcentralstation.com/products/ comparisons/cisco-asa_vs_watchguard-xtmMays, J. (2017). Update and Patch OpenSSL for Heartbleed Vulnerability | Liquid Web Knowledge Base. Liquid Web Knowledge Base. Retrieved 25 November 2017, from https://www.liquidweb.com/kb/update-and-patch-openssl-for-heartbleed-vulnerability/Shinder, D. (2017). 10 physical security measures every organization should take. TechRepublic. Retrieved 25 November 2017, from https://www.techrepublic.com/blog/10-things/10-physical-security-measures-every-organization-should-take/Zielinski, D. (2014). Integrating HR Systems Can Deliver Rich Rewards. SHRM. Retrieved 25 November 2017, from https://www.shrm.org/hr-today/news/hr-magazine/pages/0514-hr-systems-integration.aspxhttps://www.pcworld.com/article/262148/who_makes_the_best_802_11ac_router_we_review_the_only_5_models_available_today.html
How Does a Ransomware Attack Work and Its Prevention and Solution?Research QuestionThe research question that this paper asks is: What mechanisms and strategies are most effective in preventing and responding to ransomware attacks?IntroductionRansomware is a type of malicious software designed to block access to a computer or data until a sum of money is paid (Zakaria et al., 2017). It has become one of the most significant threats in the cybersecurity domain. Understanding the mechanics of ransomware attacks, as well as developing effective prevention and solution strategies, is important in the todays digital era (Muslim et al., 2019). This paper discusses the literature surrounding ransomware attacks, focusing on their operation, prevention methods, and solutions post-attack.Literature ReviewRansomware attacks have evolved considerably in their methods and targets. Maurya et al. (2018) provide a comprehensive overview of the evolution of ransomware, highlighting how these attacks have grown from simple nuisances to sophisticated threats…...
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References
Maurya, A. K., Kumar, N., Agrawal, A., & Khan, R. A. (2018). Ransomware: evolution, target
and safety measures. International Journal of Computer Sciences and Engineering, 6(1), 80-85.
Muslim, A. K., Dzulkifli, D. Z. M., Nadhim, M. H., & Abdellah, R. H. (2019). A study of
Network Security: Past, Present and Future
The work of Curtin (2007) states that a network is defined as "any set of interlinking lines resembling a net, a network of roads -- an interconnected system, a network of alliances." Quite simply a computer network is a system of computers that are interconnected. There are seven layers of communication types identified by the International Standards Organization (ISO) Open Systems Interconnect (OSI) eference Model as well as the interfaces among them. Each layer is stated to be dependent on the services that the layer above it provides including the physical network hardware.
Technology: Description and Area of esearch
The most popular networks which have been used over the past twenty-five years and which include both private and public networks include the following network services: (1) UUCP -- Unix-to-Unix CoPy: This was developed originally for connecting Unix hosts together however, since that time UUCP is reported to…...
Keohane & Nye (2000) in: Schneider, Jim (2003) Globalization and Think-Tanks: Security Policy Networks. SAREM International Seminar, Istanbul, May 30, 2003. Retrieved from: http://www.policy.hu/schneider/GlobalTTs.pdf
The purpose of this discussion was to examine the network security measures that are available. The research found that the proper configuration provides the first line of defense as it relates to securing a network.
In addition, firewalls serve an essential role in securing networks against outside intrusions. The research also indicates that anti-virus software, encryption software and biometrics allow organizations to secure networks in a more comprehensive manner. There are also specific strategies and technologies that should be considered if an organization chooses to use a wireless network.
eferences
Davis J.P.(2006) Telecommute Safely: Use Internet Technology to Keep Cost Down. Contributors: - author. Journal Title: Journal of Accountancy. Volume: 202. Issue: 2. Publication Year: 2006. Page Number: 39+.
Hoover M. (2005) Network Security: The New Perimeter; Security Threats Can No Longer Be Contained in the DMZ. How Do You Protect Every esource, and Every User's Traffic, No Matter Where it's Coming From?. Business…...
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References
Davis J.P.(2006) Telecommute Safely: Use Internet Technology to Keep Cost Down. Contributors: - author. Journal Title: Journal of Accountancy. Volume: 202. Issue: 2. Publication Year: 2006. Page Number: 39+.
Hoover M. (2005) Network Security: The New Perimeter; Security Threats Can No Longer Be Contained in the DMZ. How Do You Protect Every Resource, and Every User's Traffic, No Matter Where it's Coming From?. Business Communications Review. Volume: 35(7). Page Number: 40+.
The main lesson learned from viewing the tutorials and programs is the ease and flexibility of configuring each specific session to the unique needs of an audience. Feasibly these technologies could be used for creating highly unique and tailored learning experiences for students who were learning through online universities only for example. The ability to tailor all forms of digital content, from music and video to drawing boards and the inclusion of self-pacing materials, shows the potential of these technologies to support online learning over an entire semester for example (Suduc, Bizoi, Filip, 2009). The implications on long-term learning using these technologies is also significant. It is clear that the recursive nature of how they are designed would allow for repetitive study of complex concepts, including the more challenging areas of math, statistics and the sciences.
Conclusion
Web conferencing has progressed from just a means to project slides or a rudimentary…...
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References
(Bernoff, Li, 2008)
Bernoff, J., & Li, C. (2008). Harnessing the power of the oh-so-social web. MIT Sloan Management Review, 49(3), 36-42.
(Bisdikian, Brady, Doganata, Foulger, 1998)
Bisdikian, C., Brady, S., Doganata, Y.N., & Foulger, D.A. (1998). Multimedia digital conferencing: A web-enabled teleconferencing system. IBM Journal of Research and Development, 42(2), 281-298.
Network Security: An Issue for Business Data Communication
Computer security and the protection of data has been an issue since the early 1980s when computers became standard office equipment. Company sensitive information is stored on computers. Protecting the access to and integrity of this information has been a key concern for managers and computer specialists alike. The issues in data security have not changed, however the advent of the Internet has made keeping data secure more difficult. The Internet did not change the key issues, just the number of users trying to access the information. Network administrators have been facing these issues for quite some time.
The key security issue facing IT professionals is to protect the system from invaders or intruders known as Hackers. Hackers can be grouped into several categories according to motive. They are Joyriders (who do it for fun), Vandals (who do it to cause harm), Scorekeepers (who…...
Coffey, Tom, Dojen, Reiner and Flanagan, Tomas. Verification of Cryptographic Protocols used in Fixed and Mobile Networks..Information Security. ERCIM News No. 49, April 2002. Accessed July 2002.http://www.ercim.org/publication/Ercim_News/enw49/coffey.html
Networks are continually vulnerable to threats, which is why it is important to understand the ramifications of ping sweeps and port scans. While ping sweeps and port scans are not attacks in and of themselves, they are probing activities. Ping sweeps are automated processes that show the malicious user which computers on a network are active, whereas port scans identify the potential points of entry into a network from which to launch an attack. Both ping sweeps and port scans are threats that can be averted in order to protect network security.
Ping sweeps are akin to shouting aloud in a canyon and waiting for a response, or sending a call on a radio. Usually, intruders can create robots to conduct ping sweeps for them. One protocol used is the ICMP ECHO (Teo, 2000). The ICMP ECHO sends messages within a range of IP addresses. Another type of ping sweep is…...
networking and TCP/IP and internetworking. Also discussed are risk management, network threats, firewalls, and also more special purpose network devices. The paper will provide a better insight on the general aspects of security and also get a better understanding of how to be able to reduce and manage risk personally at the workplace and at home.
In today's world, the Computer has become a common feature in any organization anywhere in the world. This may be due to the fact that a computer can be accessed by anybody who knows how to handle it and also because it can store a lot of information both confidential and general. A computer is connected through a physical network that allows a person or many persons to share any information necessary. (Conceptual Overview of Network Security) Though network security in Information Technology is an issue that has been discussed endlessly, implementation has definitely…...
Best Practice Wireless Network Security
Best Practices for Network Security
Wireless network is a technology that relies on radio waves instead of wires in connecting computer devices to the internet. There is a transmitter, with the name wireless access point or gateway, wired into an internet connection, which provides a "hotspot" transmitting the connectivity over radio waves. Hotspot has the capability to identify information, that include an item known as an SSID (service set identifier), that enable computer devices to locate them. For computer and other devices that have been equipped with wireless card as well as have permission to access the wireless frequency can then have the opportunity to connect to the network. There are some computer and other devices that may be able to automatically identify open wireless networks within a particular area, and for some you may be required to locate and enter the information manually like the SSID.
Introduction
Network…...
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References
Gast. Matthew S. (2002) "802.11 Wireless Networks" The Definitive Guide O'Reilly & Associates Inc., Sebastopol, CA.
James F. Kurose, Keith W. Ross, (2001) "Computer Networking, A top-down approach featuring the Internet," 1st edition, Pearson Education.
Network Security Administrator, Approach Problem Securing a Central
I would utilize a number of security measures to adequately secure a central computer network that is accessed by other branches and staff from remote physical location. The vast majority tends to work in conjunction with one another, and should not deny access to authorized users.
For all of the computers that are present in the primary, physical location in which the network is based out of, I would employ encryption measures. This sort of encryption is similar to that used by cellular devices (whether in the form of tablets or phones), which enables users to reduce the threat of unauthorized users from accessing their devices or the data within them (Stafford, 2010). However, it is worth noting that encryption would not be used on the computing devices in the network that are outside of this primary physical location.
One of the primary layers…...
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References
Merkow, M.S., Breithaupt, J. (2006). Information Security: Principles and Practices. Upper Saddle River: Pearson Prentice Hall.
Bejtlich's insights and outlooks when it comes to many different areas of network security monitoring really helped to provide the necessary context for understanding the material, mechanisms, and processes of the field.
There were other readings assigned in the course that were useful, too, of course, and many other sources encountered during the various exercises and research/written work required for the completion of the course that were also beneficial in identifying and illuminating many of the specific areas of concern and of growing knowledge and interest in the network security monitoring field. While Bejtlich (2004) does a tremendous job of introducing and outlining many of the fundamental theories and frameworks within the discipline of network security monitoring, these other sources were also enormously useful in their further commentary on these issues and in the different perspectives that were brought to bear on such things as end-user security, the nature of…...
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References
Ahmad, N. & Habib, M. (2010). Analysis of Network Security Threats and Vulnerabilities by Development & Implementation of a Security Network Monitoring Solution. Blekinge Institute of Technology (thesis).
Barth, W. (2008). Nagios: System and Network Monitoring. San Francisco: Open Source Press.
Bejtlich, R. (2004). The Tao of Network Security Monitoring: Beyond Intrusion
Cisco SAFE has significantly help in securing large internetwork that has remain a daunting challenge; this complexity has been facilitated through cloud computing as well as social networks. Cisco SAFE architecture offer guidelines of design and implementation which are detailed that is used for building secure and reliable network infrastructures as well as the policies supporting them. The guides have been established based on security best practices that have been amalgamated with several hours spent in designing, testing, and documentation.
Since the contemporary organizational environment is full of threats, the target is directed on everything and Cisco SAFE uses defense-in-depth approach to provide the needed security. Systemwide intelligence approach for SAFE tend to address network devices; security of the infrastructure, applications and application servers; endpoints; email; web; databases; storage systems; communications devices; and other servers. This is accomplished through putting emphasis on the integration of…...
The paper creates Extended Access Control Lists for ABC Corporation using Port Numbers.
Extended Access Control Lists for ABC Corporation using Port Numbers
access-list 101 permit tcp 172.16.3.0. 0.0.0.255 any eq 20
access-list 101 permit tcp 172.16.5.0. 0.0.0.255 any eq 21
access-list 101 permit tcp 172.16.3.1/16. 0.0.0.255 any eq 22
access-list 101 permit tcp 172.16.3.254/16. 0.0.0.255 any eq 25
access-list 101 permit tcp 172.16.5.254/16. 0.0.0.255 any eq 35
access-list 101 permit tcp 172.16.0.254/16. 0.0.0.255 any eq18
access-list 101 permit tcp 172.16.5.35/16. 0.0.0.255 any eq19
access-list 101 permit tcp 172.16.0.0/16. 0.0.0.255 any eq39
access-list 101 deny tcp 172.16.0.254/16. 0.0.0.255 any eq26
access-list 101 deny tcp 172.16.5.35/16 . 0.0.0.255 any eq23
Further steps is the configuration of ACL for ABC Corporation. Configuration of Extended Access Control list is critical for the protection of network infrastructures of ABC Corporation.
Configuration of Extended Access Control Lists for ABC Corporation using Port Numbers.
The following commands are used for the configuration of Extended Access Control List for the ABC…...
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References
Cisco Systems (2002).Virtual LAN Security Best Practices. Cisco Inc. White Paper.
Cisco (2010).Protecting Your Core: Infrastructure Protection Access Control Lists Document ID: 43920. Cisco Systems, Inc. Research Paper.
National Institute of Science and Technology (2010). The NIST Definition of Cloud Computing USA.
Sun CTO (2009). Cloud computing is like the mainframe.Techtarget.
1. Granular control: An ACL allows administrators to define specific rules and permissions for different users, devices, and applications within a network. This granular control ensures that only authorized individuals have access to sensitive data and resources, reducing the risk of unauthorized access.
2. Restricting access: ACLs can be used to restrict access to certain resources based on criteria such as IP address, port number, or protocol. This helps in preventing unauthorized users from gaining access to critical systems and applications within the corporate network.
3. Monitoring and auditing: ACLs enable administrators to monitor and track user activity within the network by....
Enhanced Network Security with Access Control Lists (ACLs)
In the corporate landscape, network security is paramount to protect sensitive data, maintain business continuity, and comply with industry regulations. Access Control Lists (ACLs) serve as a crucial defense mechanism by implementing fine-grained access controls, enhancing overall network security.
Concept of ACLs
An ACL is a set of rules that define who can access specific resources within a network. These rules are applied to network devices such as routers, switches, and firewalls to regulate network traffic based on criteria like source IP address, destination IP address, port number, and protocol.
Cyber hackers exploit vulnerabilities in computer systems in various ways to gain unauthorized access, including:
1. Exploiting software vulnerabilities: Hackers can target software weaknesses (such as bugs or security flaws) to gain access to a system. They may deploy malware or use techniques like buffer overflows to exploit these vulnerabilities.
2. Phishing attacks: Hackers often use phishing emails or fake websites to trick users into providing sensitive information like login credentials. Once hackers obtain this information, they can use it to access the system.
3. Social engineering: Hackers may use social engineering techniques to manipulate people into providing access to a system. This....
Police Functional Adaptation to the Digital or Post Digital Age: Discussions with Cybercrime Experts
Law enforcement agencies (LEAs) worldwide are undergoing a significant transformation in the digital age, driven largely by the rise of cybercrime. This essay explores how LEAs have adapted their functions and approaches to combat cybercrime effectively through discussions with cybercrime experts.
Technological Advancements and Capacity Building
One of the most prominent adaptations involves the integration of advanced technologies into police operations. LEAs are investing in cutting-edge tools such as data analytics, artificial intelligence (AI), and cloud computing to enhance their capabilities. For instance, AI algorithms can sift through....
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