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Cyber attacks fall into three categories; (a) the unauthorized intrusion – the attacker finds a way into the computer system with the use of various techniques such as cracking or hacking or the insider overuses his or her authorized access to perform unauthorized activities to the computer system or on to the network, (b) destructive worms or viruses – they spread from one computer to the other through electronic mail (email) or other types of data exchange media and these worms and viruses cause the loss of functioning on any part of the network, and (c) denial of service (DoS) attacks – they utilize a number of techniques to attack targeted computer system, communication is the mode used and the system is overloaded until its functionality is hampered.
Hacking is the unauthorized intrusion of the computer system or the network, also known as cracking. Hacking can be further categorized into three types. The first type of hacking is the shutting down of the computer system. The computer system can be shut down by the hacker; this problem is recognizable by the administrator and the system can be restored quickly. The second type of hacking is the defacement of the computer system or the network. Defacements alter the information that is on the victim’s computer system.
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The paper focuses on the importance of computer forensics in collecting, interpreting and presenting evidence relating to cyberspace crimes. The value added by computer forensic to information gathered is also discussed. The paper presents proposals of alternative methods which can be used to protect company data from cyberspace attack.
This article is a research-based project that aims to compare two or more open source Network Intrusion Detection Systems, in terms of their operation, methods of detection, capabilities, and performance. Network Intrusion Detection Systems (NIDSs), are developed to monitor network activities for any malicious activities and network violations.
The usage of the Internet is increasing with pace. Even small companies are integrating their business process with a small computer network. Every now and then, a new business wants its presence on the web. Moreover, services provided on the web are considered the value added, in terms of customer satisfaction and feasibility.
Introduction Discussing computer forensics in the context of law enforcement agencies or in corporate security, it will lead to a conclusion of a subject that covers the utilization of computers to catalog physical evidence that is analyzed in other forensics techniques including biometric identification, analyzing DNA and dental evidence.
The uses of database management systems present opportunities for database administrators to secure databases and minimize security concerns. Database Forensics and auditing have become one of the most important subjects that have received wide attention in the researches.
In addition, the paper will also prioritize discussed data sources according to three different events of network intrusion, malware installation, and insider file detection. Discussion will be very beneficial for managers and individuals in their better understanding of digital forensics and processes that involve its investigation.
The Cloud Service Providers buoy up the perception of not letting users see whatever is behind the ‘virtual curtain’ and to this regard the ability to carry out digital investigations may be less efficient.
Network forensics refers to the capture, storage, and analysis of network traffic. It can be used interchangeably with terms such as packet mining, packet forensics, or digital forensics. Regardless, the concept remains the same i.e. recording packet traffic of emails, database queries, Web browsing to a single searchable network traffic database for detailed examination (Habib).