Computer Base Network Security And Firewalls In Banking System

Project and Seminar Material for Computer Science and Computer Engineering

Abstract

The degree of accidence of an organisation that services to customer such as banks security depends on speed and accuracy with the service performed in the banks which include information processing e.g. data entry. Data using sorting data, updating data and service data etc. which are better suited to computer.

Therefore the acquisition of this latest gadgets in business goes long as toward keeping you a step ahead your competitor therefore most of the new banks being established go straight into bank securing and computerisation of fire wall.

In conclusion, the reality of this project work is described as distributed computing in bank security processing that is the computerization of bank security and fire wall in banking operation particularly in area of banking security.

Table Of Content

Preliminary Page(s)

Title page
Certification
Dedication
Acknowledgement
Abstract
Table of content

Chapter One

1.0 Introduction

1.1 Back ground of study
1.2 Statement of the problem
1.3 Objectives of the study
1.4 Significance of the study
1.5 Scope of the study
1.6 Limitation of the study
1.7 Definition of terms

Chapter Two

2.0 Literature Review

2.1 Introduction
2.2 Literature
2.3 Network
2.4 Types of network
2.5 Network and banking
2.6 Advantages and disadvantages of net work
2.7 Security concepts
2.8 Network security
2.9 Mode of data transmission
2.10 Fire walls its types components and techniques

Chapter Three

3.0 System Investigation Analysis And Design Of 1/0 Forms

3.1 Introduction
3.2 System investigation
3.3 System analysis
3.4 Designing of input / output forms
3.5 Research methodology
3.6 Sources of data
3.7 System proposal
3.8 Objective of the system

Chapter Four

4.0 System Design

4.1 Introduction
4.2 Programming testing implementation and handour change over
4.3 Programming and testing
4.4 Implementation
4.5 Handover changing over

Chapter Five

5.0 Summary Recommendation And Conclusion

5.1 Introduction
5.2 Summary
5.3 Recommendation
5.4 Conclusion
References

Chapter One

1.0 Introduction

The interconnection of computer with other related office equipments are finding increasing application in almost all field of human endeavour most especially the financial sector. More and more banks are introducing the use of computer networks in their establishment. These provide for easy access to the information and services available in the organisation.

Because of the high value of information, organisations now classify their data as well as putting a lot of effort to safeguard it. Networking is the vehicle for sharing information where as network security is a way to protect the information, information sharing cannot be constrained by physical or geographical location and today’s information has been made accessible to all by means of global network. For an organisation to become parts of this global network, it first need to have his own Local area network (LAN), which is then connected to the internet by means of a Wide area network (WAN). Computer security focuses on two main problems

How to protect the physical equipment of the computer.
How to protect against unauthorized use of the

Computer faculties by intruders. The objective of network security is to control access to corporate and government data residing on network services or transmitted over the LAN or WAN

1.1 Background Of Study

Diamond Bank Nigeria limited was established with the aim of providing banking services to the general public. It is first growing commercial bank incorporate with headquarter and about 8 or more branches scattered across the country, which included Imo, Abia, Calabar and Ibadan etc with a staff strength of more than 500 workers, they provide banking service to the public which include

The handling of cash and provision of bank drafts
The provision of facilities for the safe keeping of important document and title delds.
The lending of money in the form of loans and overdrafts.
The management of customers’ investment such as the purchase of stocks and shares and the receipts of periodic dividends.
The transfer of funds to other places periodically

1.2 Statement Of The Problem

Diamond bank Nigeria limited has a large volume of information, which it has to handle efficiently in other to evolve efficiently corporate management and improved customer services. The information needed to carry out operation geared toward customer satisfaction must be highly secured and transmitted properly too. Since the banks uses computer network in their activities, there are bound to be threats to security which hinders work progress in the organisation, once the organisation launches it presence in the internet.

Most banks lack awareness on how a network can be implemented, secured and maintained. Threats to network security are sometimes difficult to track and it won’t be easy to refuse the request of the attackers. Without refusing legitimate request for services. This attack comes from any connection that the bank has with the outside world, which included dial up moderns, and internet connection. So in order to adequately address security all possible avenues of entry must be identified and evaluated, also the security of every point must be consistent with stated policy on acceptable risk levels.

1.3 Objective Of The Study

Networking is the backbone of accessing vital information the world has becomes a global village, sharing everything through networking. Networks requires a high level of security, which involves the technical and administrative safeguards required to protect a computer based system (hardware, personnel data) against the major hazards to which most computer system are exposed and to control accessed to information. The work is aimed at defining/providing a security system that will keep unauthorized uses from the protected areas of the network. This system will also prohibit potentially vulnerability services from entering or leaving the network. The system will also provide a location for monitoring security related events and adults as well as the overall security management of the network.

1.4 Significance Of The Study

Network security and fire walls are useful in banking sectors and in their services
It is useful to the banks in other sectors who would wish to use network security and firewall in their banks.
It shows need for security in banking sectors.

1.5 Scope Of The Study

This study presents an overview of security system network and firewalls its highlights are on firewalls. Risks threats and vulnerability of network. It also concentrates on design of security system and network types.

1.6 Limitation Of The Study

This research was limited by the shortness of time giving rise to the limited study of network security and firewalls.

Also the finance to embarked upon a higher level of research was not available. The bank on its part did not give out much information that would have really aided the writing of this work due to some security reasons.

Additionally, this research was carried out at the Owerri branch office of diamond bank. Therefore the research was based on the branch section and not from the centre.

1.7 Definition Of Terms

Network:

Network in computing a number of computer and other devices that are connected together so that equipment and information can be snared.

Security:

These are activities that involves protecting a building or person against attack danger hazards

Fire wall:

Fire wall in computing is a part of a computer system that is designed to prevent people from getting at information without authority. But still allows them to received information that is sent to them.

Computer:

Computer is an electronic device that accept data, processes the data and gives information under automatic control

Bank:

This is an organisation that provides various financial service e.g. keeping or lending money.

Personnel:

Person who manage, design program, control or operate an information processing system and maintain access to the network.

Policy:

This layer defines the umbrella of the security program. It defines the policies of the organisation without a complete, effective and well implemented policy the security program cannot be complete.

LAN:

Local Area Network

MAN:

Metropolitan Area Network

WAN:

Wide Area Network

E-MAIL:

Electronic Mail

FAX:

Facsitaile Document Transmission

Chapter Five

5.0 Summary, Conclusion And Recommendation

5.1 Introduction

This chapter deals with the summary of the research work so for followed by recommendation and conclusion.

5.2 Summary

Based on our understanding of network security and firewalls it can be seen that this topic covers a wide spectrum. Organisations need security to protect their data and environment. Some of the services banks render include handling cash and providing bank drafts, transfer of funds to other places periodically, keeping of accounts and provision of facilities for the safe keeping of important documents and little deeds. One can connect to the network in three types local metropolitan and wide area networks. In implementing network and security, several equipments are involved. The physical equipment used in the implementation of the network and security includes the moderns, multiplexors, magnetic link character recognition (MICR) and the printers. There is the need for software programs to be written so as to control the operations of the network.

5.3 Conclusion

Having studied the use of computer network security and firewalls in a modern bank, highlighting the advantages and disadvantages of networks, it would be proper to suggest to other banks to provide a better means to protect their network. It is interesting to know that most banks are already computerized indicating that the enabling platform for implementing the network already exists. However, before embanking on the project a more detailed study should be commissioned and executed. The study which should be carried out by an expert network analyst will enable the bank decide on the appropriate topology software, hardware as well as the network facilities to implement.

5.4 Recommendation

Looking at the sort of attacks that are common to network environments, we can derive a relatively short list of high level practices that can help prevent security disasters and help to control the damage in the relent of a successful attack.

Data Backup:

Although not a very good approach from a security paint of view banks should try as much as possible to provide duplicates of dates and information. Operational requirement should dictate the backup policy, and this should be closely coordinated with a disaster recovery plan: such that if one point fails one can easily switch to another method of performing that particular operation without housing to wait for the system to be repaired.

Avoid system with single point of failure:

Any security that can be broken by breaking through anyone component is not really very strong. In security a degree of redundancy is good and can help to protect the organisation from a minor security breach from developing into catastrophe

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