Questions

Some say that with the development of systems such as IPsec, the role the CAs play in modern communication will diminish and eventually cease. Comment on this statement.

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Comment on the statement regarding CAs and IPsec.

Some say that with the development of systems such as IPsec, the role the CAs play in modern communication will diminish and eventually cease. Comment on this statement.

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Three-way Handshake as a Security Threat

Give a detailed account of why the three-way handshake is a security threat.

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Three-way Handshake as a Security Threat

Give a detailed account of why the three-way handshake is a security threat.

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Discuss the major sources of computer crimes.

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Discuss the major sources of computer crimes.

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Can system intrusions be stopped? Support your response.

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Can system intrusions be stopped? Support your response.

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What is the best way to deal with hacking?

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What is the best way to deal with hacking?

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Describe the sequence of steps a sender of a message takes when sending the message with a digital signature. What steps does the receiver of such a message take to recover the message?

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Describe the sequence of steps a sender of a message takes when sending the message with a digital signature. What steps does the receiver of such a message take to recover the message?

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Why is a hybrid cryptosystem preferred over symmetric and public key encryption systems?

98 Views • 1 Answers

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Why is a hybrid cryptosystem preferred over symmetric and public key encryption systems?

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Global Privilege in Authorization Systems

Discuss the concept of global privilege. Does it work well in a distributed authorization or centralized authorization?

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Global Privilege in Authorization Systems

Discuss the concept of global privilege. Does it work well in a distributed authorization or centralized authorization?

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What is security and information security? What is the difference?

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Discuss the many ways in which access can be abused.

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Discuss the many ways in which access can be abused.

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Increase in Virus and Worm Attacks

There seems to have been an increase in the number of reported virus and worm attacks on computer networks. Is this really a sign of an increase, more reporting, or more security awareness on the part of the individual? Comment on each of these factors.

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Increase in Virus and Worm Attacks

There seems to have been an increase in the number of reported virus and worm attacks on computer networks. Is this really a sign of an increase, more reporting, or more security awareness on the part of the individual? Comment on each of these factors.

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States in Security Process

It has been stated that security is a continuous process; what are the states in this process?

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What is the difference between authentication and nonrepudiation?

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Discuss a good security auditing system.

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Discuss a good security auditing system.

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What are the differences between symmetric and asymmetric key systems?

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Kerberos and SSL are additional layers to enhance authentication. Detail how these enhancements are achieved in both cases.

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Kerberos and SSL are additional layers to enhance authentication. Detail how these enhancements are achieved in both cases.

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List and discuss the types of hacker crimes.

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List and discuss the types of hacker crimes.

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Kerberos Authentication Process Players

Discuss in detail the role played by each one of the five players in a Kerberos authentication process.

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Kerberos Authentication Process Players

Discuss in detail the role played by each one of the five players in a Kerberos authentication process.

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Many predict that the future of e-commerce is pegged on the successful implementation of authentication. Discuss.

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Many predict that the future of e-commerce is pegged on the successful implementation of authentication. Discuss.

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Discuss the role of certificate authentication in e-commerce

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Discuss the role of certificate authentication in e-commerce

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System Intrusion Detection and Prevention

Discuss as many effective ways of responding to a system intrusion as possible. What are the best? Most implementable? Most cost-effective?

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System Intrusion Detection and Prevention

Discuss as many effective ways of responding to a system intrusion as possible. What are the best? Most implementable? Most cost-effective?

69 Views • 1 Answers

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Why are design flaws such a big issue in the study of vulnerability?

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Why are design flaws such a big issue in the study of vulnerability?

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Four Access Methods and Their Weaknesses

Discuss four access methods, giving the weaknesses of each

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Four Access Methods and Their Weaknesses

Discuss four access methods, giving the weaknesses of each

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Discuss ways a system administrator can reduce system scanning by hackers.

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Discuss ways a system administrator can reduce system scanning by hackers.

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Physical Access Restrictions

Physical access to resources is essential and must be the most restricted. Why?

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Physical Access Restrictions

Physical access to resources is essential and must be the most restricted. Why?

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Circuit-Level vs. Network-Level Firewalls

What are circuit-level firewalls? How are they different from network-level firewalls?

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Circuit-Level vs. Network-Level Firewalls

What are circuit-level firewalls? How are they different from network-level firewalls?

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Discuss the benefits of enhancement of basic authentication with a cryptographic scheme such as Kerberos, SSL, and others. Give specific examples.

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Discuss the benefits of enhancement of basic authentication with a cryptographic scheme such as Kerberos, SSL, and others. Give specific examples.

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Access Control: Least Privilege Principle

Discuss the benefits and problems resulting from the “least privilege” principle often used in access control.

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Access Control: Least Privilege Principle

Discuss the benefits and problems resulting from the “least privilege” principle often used in access control.

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Network Layer Security Mechanisms and Efficacy

IPsec provides security at the network layer. What other security mechanism is applicable at the network layer? Do network layer security solutions offer better security?

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Network Layer Security Mechanisms and Efficacy

IPsec provides security at the network layer. What other security mechanism is applicable at the network layer? Do network layer security solutions offer better security?

68 Views • 1 Answers

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What is a bastion router? How different is it from a firewall?

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What is a bastion router? How different is it from a firewall?

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Compare or discuss the differences between any two security systems.

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Compare or discuss the differences between any two security systems.

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Access Control and Authorization: Denying Document with Extended Links

Consider an environment where each server does its own authorization. If an access request is made to a document that has extended links and one of the link requests is denied, should the whole document request be denied? Why or why not?

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Access Control and Authorization: Denying Document with Extended Links

Consider an environment where each server does its own authorization. If an access request is made to a document that has extended links and one of the link requests is denied, should the whole document request be denied? Why or why not?

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Network Vulnerability Identification

Is it possible to locate all vulnerabilities in a network? In other words, can one make an authoritative list of those vulnerabilities? Defend your response.

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Network Vulnerability Identification

Is it possible to locate all vulnerabilities in a network? In other words, can one make an authoritative list of those vulnerabilities? Defend your response.

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Computer Network Fundamentals: Encryption Standards Security

Most of the encryption standards that are being used such as RSA and DES have not been formally proven to be safe. Why then do we take them to be secure—what evidence do we have?

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Computer Network Fundamentals: Encryption Standards Security

Most of the encryption standards that are being used such as RSA and DES have not been formally proven to be safe. Why then do we take them to be secure—what evidence do we have?

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Firewall Services and Protocols

Search and discuss as many services and protocols as possible offered by a modern firewall.

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Firewall Services and Protocols

Search and discuss as many services and protocols as possible offered by a modern firewall.

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Authentication Policy Involvement

Making an authentication policy must be a well-kept secret to ensure the security of the intended system. Why then is it so important that a security policy include an authentication policy that involves as many as possible? What kind of people must be left out?

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Authentication Policy Involvement

Making an authentication policy must be a well-kept secret to ensure the security of the intended system. Why then is it so important that a security policy include an authentication policy that involves as many as possible? What kind of people must be left out?

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Discuss the best approaches to implementing an effective IDS.

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Discuss the best approaches to implementing an effective IDS.

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Discuss the best ways of protecting an internal network using firewalls from the following attacks: * SMTP server hijacking * Bugs in operating systems * ICMP redirect bombs * Denial of service * Exploiting bugs in applications

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Discuss the best ways of protecting an internal network using firewalls from the following attacks: * SMTP server hijacking * Bugs in operating systems * ICMP redirect bombs * Denial of service * Exploiting bugs in applications

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Reasons for Anonymous Authentication in High-Security Systems

There are many compelling reasons why a system that must implement security to the maximum must give anonymous authentication to a class of users. Detail five of these reasons.

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Reasons for Anonymous Authentication in High-Security Systems

There are many compelling reasons why a system that must implement security to the maximum must give anonymous authentication to a class of users. Detail five of these reasons.

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Discuss the basic components of cryptography

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Discuss the basic components of cryptography

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Discuss the advantages of using an application-level firewall over a network-level firewall.

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Discuss the advantages of using an application-level firewall over a network-level firewall.

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Why are vulnerabilities difficult to predict?

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Why are vulnerabilities difficult to predict?

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Why was VBScript not very popular?

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Why was VBScript not very popular?

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Sources of System Vulnerabilities

Discuss the sources of system vulnerabilities.

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Sources of System Vulnerabilities

Discuss the sources of system vulnerabilities.

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Security Best Practices and Mechanisms

Security best practices are security guidelines and policies aimed at enhancing system security. Can they work without known and proven security mechanisms?

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Security Best Practices and Mechanisms

Security best practices are security guidelines and policies aimed at enhancing system security. Can they work without known and proven security mechanisms?

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Is it possible to implement full distributed authorization? What will be involved?

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Is it possible to implement full distributed authorization? What will be involved?

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Discuss the weaknesses of public key encryption

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Discuss the weaknesses of public key encryption

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Three Components of a Global Access Model

Discuss the three components of a global access model

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Three Components of a Global Access Model

Discuss the three components of a global access model

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Discuss the differences between a firewall and a packet filter

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Discuss the differences between a firewall and a packet filter

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Firewall Design for File Uploads to Internal Network

How would you design a firewall that would let Internet-based users upload files to a protected internal network server?

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Firewall Design for File Uploads to Internal Network

How would you design a firewall that would let Internet-based users upload files to a protected internal network server?

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Discuss the weaknesses of symmetric encryption

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Discuss the weaknesses of symmetric encryption

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Scripting and Security in Computer Networks and Web Browsers

The most common CGI function is to fill in forms; the processing script actually takes the data input by the Web surfer and sends it as e-mail to the form administrator. Discuss the different ways such a process can fall victim to an attacker.

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Scripting and Security in Computer Networks and Web Browsers

The most common CGI function is to fill in forms; the processing script actually takes the data input by the Web surfer and sends it as e-mail to the form administrator. Discuss the different ways such a process can fall victim to an attacker.

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CGI Scripting and Security

CGI is also used in discussions allowing users to talk to the customer and back. CGI helps in creating an ongoing dialog between multiple clients. Discuss the security implications of dialogs like this.

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CGI Scripting and Security

CGI is also used in discussions allowing users to talk to the customer and back. CGI helps in creating an ongoing dialog between multiple clients. Discuss the security implications of dialogs like this.

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Why is it difficult to implement distributed authorization?

69 Views • 1 Answers

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Why is it difficult to implement distributed authorization?

69 Views • 1 Answers

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CGI and Web Programming Revolution

How did CGI revolutionize Web programming?

126 Views • 1 Answers

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CGI and Web Programming Revolution

How did CGI revolutionize Web programming?

126 Views • 1 Answers

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Client-side vs. Server-side Scripting

What are the differences between client-side and server-side scripting? Is one better than the other?

74 Views • 1 Answers

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Client-side vs. Server-side Scripting

What are the differences between client-side and server-side scripting? Is one better than the other?

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Client-side vs. Server-side Scripting Security

In terms of security, is client-side scripting better than server-side scripting? Why or why not?

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Client-side vs. Server-side Scripting Security

In terms of security, is client-side scripting better than server-side scripting? Why or why not?

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Firewall Protocol Implementation

Show how data protocols such as TCP, UDP, and ICMP can be implemented in a firewall and give the type of firewall best suited for each of these protocols.

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Firewall Protocol Implementation

Show how data protocols such as TCP, UDP, and ICMP can be implemented in a firewall and give the type of firewall best suited for each of these protocols.

81 Views • 1 Answers

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Software Verification and Validation (V&V) in System Vulnerability

Part of the problem in design flaws involves issues associated with software verification and validation (V&V). What is the role of V&V in system vulnerability?

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Software Verification and Validation (V&V) in System Vulnerability

Part of the problem in design flaws involves issues associated with software verification and validation (V&V). What is the role of V&V in system vulnerability?

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Differentiate between computer and network forensics.

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Differentiate between computer and network forensics.

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RPC Authentication: Per-Request Authentication

In RPC authentication, why it is necessary that each client request that server services be authenticated by the authentication server?

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RPC Authentication: Per-Request Authentication

In RPC authentication, why it is necessary that each client request that server services be authenticated by the authentication server?

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Is hacking getting under control?

Following the history of hacking, can you say that hacking is getting under control? Why or why not?

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Is hacking getting under control?

Following the history of hacking, can you say that hacking is getting under control? Why or why not?

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Access Privileges in Computing Systems

List and discuss the most common access privileges in a computing system.

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Access Privileges in Computing Systems

List and discuss the most common access privileges in a computing system.

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Describe the message authentication process using:

Describe the message authentication process using: (a) Symmetric encryption (b) Public key encryption (c) Hash function

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Describe the message authentication process using:

Describe the message authentication process using: (a) Symmetric encryption (b) Public key encryption (c) Hash function

68 Views • 1 Answers

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Why is PKI so vital in modern communications?

69 Views • 1 Answers

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Why is PKI so vital in modern communications?

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In your opinion, is computer forensics a viable tool in the fight against the cybercrime epidemic?

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In your opinion, is computer forensics a viable tool in the fight against the cybercrime epidemic?

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Discuss human error or human factors as a major security threat.

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Discuss human error or human factors as a major security threat.

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Compare and contrast the problems and benefits of KDC and PKI

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Compare and contrast the problems and benefits of KDC and PKI

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Anonymous Authentication and System Security

Does anonymous authentication compromise the security of systems for the advantages of a few services?

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Anonymous Authentication and System Security

Does anonymous authentication compromise the security of systems for the advantages of a few services?

73 Views • 1 Answers

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Discuss the limitations of firewalls. How do modern firewalls differ from the old ones in dealing with these limitations?

72 Views • 1 Answers

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Discuss the limitations of firewalls. How do modern firewalls differ from the old ones in dealing with these limitations?

72 Views • 1 Answers

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Reasons why firewalls do not give total security

Give reasons why firewalls do not give total security

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Reasons why firewalls do not give total security

Give reasons why firewalls do not give total security

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CGI and Database Security

CGI is often used to manage extensive databases. Databases store sensitive information. Discuss security measures you can use to safeguard the databases.

68 Views • 1 Answers

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CGI and Database Security

CGI is often used to manage extensive databases. Databases store sensitive information. Discuss security measures you can use to safeguard the databases.

68 Views • 1 Answers

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Discuss the difficulties faced by cybercrime investigators.

63 Views • 1 Answers

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Discuss the difficulties faced by cybercrime investigators.

63 Views • 1 Answers

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Choosing and Using Security Best Practices

If you are an enterprise security chief, how would you go about choosing a security best practice? Is it good security policy to always use a best security practice? What are the benefits of using a best practice?

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Choosing and Using Security Best Practices

If you are an enterprise security chief, how would you go about choosing a security best practice? Is it good security policy to always use a best security practice? What are the benefits of using a best practice?

65 Views • 1 Answers

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Authentication using certificates, although considered safe, suffers from weaknesses. Discuss these weaknesses using specific examples.

70 Views • 1 Answers

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Authentication using certificates, although considered safe, suffers from weaknesses. Discuss these weaknesses using specific examples.

70 Views • 1 Answers

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Dispute between Digital and Legal Non-repudiation

Why is there a dispute between digital nonrepudiation and legal nonrepudiation?

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computer science security networking

Differentiate between access and authorization.

68 Views • 1 Answers

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Differentiate between access and authorization.

68 Views • 1 Answers

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Script Security Threat: Untrusted Data

The biggest script security threat has always been the acceptance of untrusted data. What is the best way for scripts to accept data and preserve the trust?

68 Views • 1 Answers

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Script Security Threat: Untrusted Data

The biggest script security threat has always been the acceptance of untrusted data. What is the best way for scripts to accept data and preserve the trust?

68 Views • 1 Answers

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Differences between Digital Certificates and Digital Signatures in Authentication

Discuss the differences between digital certificates and digital signatures in authentication

66 Views • 1 Answers

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Differences between Digital Certificates and Digital Signatures in Authentication

Discuss the differences between digital certificates and digital signatures in authentication

66 Views • 1 Answers

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Difficulties in Enforcing Security Best Practices

Discuss the difficulties encountered in enforcing security best practices.

68 Views • 1 Answers

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Difficulties in Enforcing Security Best Practices

Discuss the difficulties encountered in enforcing security best practices.

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Are IDSs similar to firewalls?

70 Views • 1 Answers

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Are IDSs similar to firewalls?

70 Views • 1 Answers

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Application Layer Security Mechanisms

Discuss two security mechanisms applied at the application layer. Are they safer than those applied at the lower network layer?

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Application Layer Security Mechanisms

Discuss two security mechanisms applied at the application layer. Are they safer than those applied at the lower network layer?

70 Views • 1 Answers

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Effective Legislation Against Hacking

What kind of legislation can be effective to prevent hacking?

69 Views • 1 Answers

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Effective Legislation Against Hacking

What kind of legislation can be effective to prevent hacking?

69 Views • 1 Answers

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Web authorization and performance

Web authorization is central to the security of all Web applications. What is the best way to safeguard all Web applications and at the same time make Web access reliable and fast?

67 Views • 1 Answers

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Web authorization and performance

Web authorization is central to the security of all Web applications. What is the best way to safeguard all Web applications and at the same time make Web access reliable and fast?

67 Views • 1 Answers

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Insider Abuse Solutions

Insider abuse is a major crime category. Discuss ways to solve it.

88 Views • 1 Answers

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Insider Abuse Solutions

Insider abuse is a major crime category. Discuss ways to solve it.

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Outline and discuss the factors that influence threat information quality

61 Views • 1 Answers