ICTICT424: Address Cyber Security Requirements - IT/Computer Science Assignment Help

Assignment Task :

Assessment – Case Study – Report Writing

Case Study Report

Company Description and Network Description

Located in Sydney, Devon Accounting is a medium sized accounting company that offers tools and technologies to prepare all types of tax returns, including individual, sole trader, partnership, trust and company returns. They also provide a broad range of small business accounting services, including bookkeeping, financial statement preparation, tax planning, and advice. 

The company headquarters is located in Sydney in a three-storey building with each floor being approximately 2000 square meters. Business has grown and they have now planned to relocate to a new bigger office. Their business team has grown to 100 staff. The offices have at least 15 wireless access point. Each office has its own local internet connection. 

Most of the workstations are running a mix Windows and Macintosh operating system. The graphics department uses Apple computers. Static IP addresses are typically assigned to common resources and DHCP is used for workstations. When the network was originally designed, IP subnets were assigned to different offices and departments. However, over time and as the network has grown, this subnet organisation has broken down. Over the last several years IP subnets have been assigned and reassigned without any regard to location.

All connections to the internet are protected by firewalls and network intrusion detection systems. All the workstations have virus-scanning software and a central console is used to push out signature updates. Workstations and servers are generally kept up to date with patches and service packs. The networking staff has employed all the standard security practices one would expect to find at most organisations of this size. 

Although network security is well established in this company, there are still several cyber security vulnerabilities that the company faces on a regular basis, mostly from human-machine interactions. 

For example, a salesperson who frequently holds meetings in a conference room near his office was frustrated by the lack of available network connections for meeting participants. He decided to pick up an inexpensive wireless access point at his local electronics store and plugged it in. The salesman didn’t consider that the conference room was next to the parking

lot, making the access point available to the public.

Another problem they face is the amount of time it takes for the network administrator to locate infected computers whenever virus strikes throughout the enterprise. It is always a challenge to quickly identify, locate and disable the switch ports of machines infected. It can take up to 45 minutes per workstation for a potential total of 75 hours to locate and identify the infected users. This process usually includes logging into and querying routers and switches; and physically going to the switch to identify the port and trace the wire to the workstation. This process would have been even more difficult if the workstation happened to be in a remote location should the company expand in future. 

This process is unproductive, costly and time consuming. Additionally, it assumes some knowledge of the network architecture. A new network administrator who did not possess knowledge of the network topology would have a much more difficult time locating the infected workstations.

Another serious issue company must address is Cyber security in order to protect its information and digital assets from compromise, theft or loss since Devon Accounting stores commercial assets and personal information on smart phones, computers, hard drives and online. The attack can be from a determined attacker outside, or an insider threat within your business. Devon Accounting could be the victim of hacking because of its online presence.

Devon Accounting has been increasingly using cloud computing for various business processes. Xero is accounting software stored in the cloud and provides integration between the small business’s accounting software and its accounting advisors. Xero have recently become popular a choice of tool at Devon Accounting. Office 365 is another tool used by some of the employees at Devon Accounting

One new management headache created by cloud computing is the fragmentation of where the files are stored. There is no consistency in the storage of these files which are stored on Dropbox, Google Drive, and OneDrive. It is easy to forget where the data is. Backing up all this data from different locations, or moving from one provider to another, is complex and difficult.

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