Scope Of Network Security

Protocol capture tools and protocol analyzers are important tools for an information systems security professional. These utilities can be used to troubleshoot issues on the network. They can verify adherence to corporate policies, such as whether or not clear text privacy data is being sent on the network. They can be used to test security countermeasures and firewall deployments and are needed to perform audits, security assessments, network baseline definitions, and identification of rogue IP devices.

First, let’s talk about Wireshark, it is the most common network packet analyzer used worldwide, perhaps one of the best open source (free) packet analyzers today. It lets you capture and interactively browse the traffic running on a computer network, helping you analyze and manage the traffic in your network. Like a measuring device used to examine what is going on in your network cable, like a voltmeter used by an electrician to examine what is going on inside an electric cable. Therefore, gives you the tools to do in depth network analysis, it will try to capture network packets and display them as detailed as possible for analysis. Furthermore, used for troubleshooting network problems, examine security problems, debug protocol

In this modern day and age of computing, networks are a huge part of IT. It is important now more than ever that data sent over any network, whether it be a LAN (Local Area Network) or WAN (Wide Area Network; The Internet) is kept safe, private (when required) and uninterrupted in

Wireshark is an open-source program which enables users to actively capture and interact with the network traffic which is being funnelled through the computer. Commonly, pieces of software which do this are referred to as ‘packet sniffers’ - As the program is recording the packets which pass through the network.

2. What is promiscuous mode and how does this allow tcpdump, Wireshark, and Netwitness Investigator to perform protocol capture off a live network?

During this course there have been a number of key learning points that would help every organization protect itself from a cyber-event. These include password management, patch management, security policies, encryption, and user training. In each of the cyber security breaches one or more of these standard security protocols were not used.

As such, our company’s people resources pose the greatest risk for security breach. Our way to help mitigate risk in this area is to keep communication lines open in this area and to continually mandate security knowledge training, with mandatory updates on a regular basis. When the employees are informed of company policy when facing a security matter, they are better equipped to act in the best or right way. In this way knowledge is power – or at least empowerment to act in the best interest of the company’s information security.

In the final chapter of CompTIA Security + Study Guide eBook, it covers some great topics, key elements of implementation, support, and managing the security efforts in a company or organization. It’s important for IT Professionals to understand their role in a company/ organization. It’s also extremely important for them to understand the boundaries of security within that company/organization. Adopting best security practices while adhering to company policies will ensure that both parties are happy. There are many fines lines with security management.

Different types of security threats can occuring on the job. Such as vulnerabilities that continue to grow and evolve in scale but also in complexity. Technology roles such as system/network administrators get exposed to a variety of technologies which benefits them in the security analyst work field. The vast cooperation between new members and senior members of the team allow improvements of each other's skills. New knowledge and practices come to be understood during the exchange of

Threat modeling is the process of optimizing an organizations’ security of their network by finding vulnerabilities in that system, and then deploying countermeasures to protect against those threats should they happen in the future. If a company wants to know what vulnerabilities they may have then threat modeling is an excellent way of determining these threats. An individual threat is when an event occurs that has a negative impact on an organization’s daily operations. (Rouse, 2006). These negative impacts can manifest themselves in many ways from damaging the reputation of that organization to interrupting the functions of that organization. These threats can be in the form of destruction or stealing sensitive data, cracking of weak passwords, malware, phishing, or other scams and frauds. The goal of this paper is to address how the organizations code of ethics and security policies apply, what specific security policies can be deployed, and to identify the impact of asset security standards and governance. I chose Northrop Grumman as the focus of my paper

In the current society, business, organizations and government are very dependent on computers and Internet. Adequately protecting an organization 's information assets is a requisite issue. Many organizations have deployed security software or devices, such as firewalls or intrusion detection systems, to help protect their information assets and to quickly identify potential attacks. IBM Systems Journal states that "some organizations came to realize that one of the best ways to evaluate the intruder threat to their interests would be to have independent computer security professionals attempt to hack into their computer systems" (IBM 2001). This might be a good way to evaluate the system vulnerability. However, to allow a penetration test team break into their systems, the organization may have faces some risks. For example, the penetration test team may fail to identify significant vulnerabilities; sensitive security information may be disclosed, increasing the risk of the organizations being vulnerable to external attacks (The Canadian Institute of Chartered Accountants). Some organization even send their system administrator to be trained Ethical Hacking as a career course in Tertiary

5. Can Zenmap GUI detect which operating systems are present on IP servers and workstations? Which option includes that scan?

Our managers face a range of threats and consequences for security failures including financial loss, civil liability and criminal liability. Threats can come in many forms including physical probing, invalid input, and linkage of multiple operations. In order to limit these types of threats, Sobota will comply with the following organizational security objectives: audit, information leakage, and risk analysis. A risk analysis will identify portions of Sobota’s network, assign a threat rating to each portion, and apply the appropriate level of security. They will

Port scanning is technique used to identify any open or closed Transmission Control Protocol (TCP) or User Datagram Protocol (UDP) network communication ports or services on a network host device. For example, port number 110 is assigned to Post Office Protocol three (POP3) for email client application communications on a network. There can be up to 65,000 ports any one computer or host device and any unused open ports as determined by a port scan may allow a malicious user unauthorized access to it. This is akin to an open window in a house whereas a burglar can gain access to it ("Facts about port," ). Also, accessive port scanning can lead to a denial of service (DoS) attack and not allow authorized users to access their data. Finally, there are again several utility tools available to perform port scanning such as Nmap as mentioned previously or SolarWinds Port scanner.

Demonstrate that a potential attacker 's capacity to find vulnerabilities and exploit them to break into the information system.