Podcast
Questions and Answers
What is meant by 'computer security risks'?
What is meant by 'computer security risks'?
Computer security risks refer to any event or action that could cause a loss or damage to computer hardware, software, data, information, or processing capability.
Name three types of cybercrime perpetrators.
Name three types of cybercrime perpetrators.
Three types of cybercrime perpetrators are hackers, crackers, and corporate spies.
What are some common types of Internet and network attacks?
What are some common types of Internet and network attacks?
Common types of Internet and network attacks include phishing, denial-of-service attacks, and malware distribution.
How can unauthorized computer access be prevented?
How can unauthorized computer access be prevented?
What methods do software manufacturers use to prevent software piracy?
What methods do software manufacturers use to prevent software piracy?
Why is encryption necessary in computer security?
Why is encryption necessary in computer security?
What are some risks associated with wireless communications?
What are some risks associated with wireless communications?
What techniques can help prevent health-related issues from computer use?
What techniques can help prevent health-related issues from computer use?
What is the main reason that information transmitted over networks has a higher security risk than information kept on-site?
What is the main reason that information transmitted over networks has a higher security risk than information kept on-site?
How does a computer virus affect a computer's operation?
How does a computer virus affect a computer's operation?
What distinguishes a Trojan horse from a virus?
What distinguishes a Trojan horse from a virus?
What is a rootkit, and what capabilities does it provide to an attacker?
What is a rootkit, and what capabilities does it provide to an attacker?
Identify one symptom of an infected computer related to its operating system.
Identify one symptom of an infected computer related to its operating system.
What impact does a computer virus have on a computer's available memory?
What impact does a computer virus have on a computer's available memory?
How can a web-based security service assist users in protecting their computers?
How can a web-based security service assist users in protecting their computers?
What kind of unusual symptoms might indicate a computer is infected with malware?
What kind of unusual symptoms might indicate a computer is infected with malware?
What is a botnet and how does it relate to compromised computers?
What is a botnet and how does it relate to compromised computers?
Describe a denial of service attack (DoS attack) and its impact on Internet access.
Describe a denial of service attack (DoS attack) and its impact on Internet access.
What is a back door in the context of computer security?
What is a back door in the context of computer security?
How does spoofing affect network or Internet transmissions?
How does spoofing affect network or Internet transmissions?
What role does a firewall play in network security?
What role does a firewall play in network security?
What are some signs that a computer might be compromised by malware?
What are some signs that a computer might be compromised by malware?
Why is it essential for users to take precautions against malicious infections?
Why is it essential for users to take precautions against malicious infections?
What could happen if an operating system does not start up properly?
What could happen if an operating system does not start up properly?
What is the primary function of intrusion detection software?
What is the primary function of intrusion detection software?
How does a honeypot function in network security?
How does a honeypot function in network security?
What distinguishes unauthorized access from unauthorized use of a computer?
What distinguishes unauthorized access from unauthorized use of a computer?
List two methods organizations implement to prevent unauthorized access.
List two methods organizations implement to prevent unauthorized access.
What are the two phases involved in access controls?
What are the two phases involved in access controls?
What role does a biometric device play in security systems?
What role does a biometric device play in security systems?
What is the purpose of a possessed object in access controls?
What is the purpose of a possessed object in access controls?
What purpose do firewalls serve in network security?
What purpose do firewalls serve in network security?
What are two protective devices against electrical power variations?
What are two protective devices against electrical power variations?
Define a backup in the context of data management.
Define a backup in the context of data management.
What is the three-generation backup policy?
What is the three-generation backup policy?
Why are offsite backups important?
Why are offsite backups important?
What percentage of wireless networks reportedly lack security protection?
What percentage of wireless networks reportedly lack security protection?
What is 'war driving' in relation to wireless networks?
What is 'war driving' in relation to wireless networks?
What is one recommended configuration for a wireless access point to enhance security?
What is one recommended configuration for a wireless access point to enhance security?
Name one electrical power problem that can lead to system failures.
Name one electrical power problem that can lead to system failures.
Study Notes
Objectives Overview
- Understand computer security risks and types of cybercrime perpetrators.
- Identify Internet and network attack types, and explore safeguarding methods.
- Implement techniques to prevent unauthorized computer access and usage.
- Develop safeguards against hardware theft and vandalism.
- Recognize methods software manufacturers use to combat piracy.
- Learn about encryption mechanisms and their necessity.
- Assess devices that protect against system failure.
- Explore backup options for computer resources.
- Identify risks and safety measures in wireless communications.
- Discuss ways to mitigate health issues related to computer use.
- Address issues around information accuracy, intellectual property rights, and green computing.
- Investigate concerns regarding information privacy.
Computer Security Risks
- A computer security risk includes events or actions that could damage or compromise hardware, software, data, or processing power.
- Cybercrime refers to illegal acts conducted online or over the internet.
- Types of cybercrime perpetrators include:
- Hackers
- Crackers
- Script kiddies
- Corporate spies
- Unethical employees
- Cyber extortionists
- Cyber terrorists
Internet and Network Attacks
- Transmitting information over networks is riskier than storing it on-premises.
- Online security services evaluate computers for vulnerabilities related to Internet and email.
- Types of malware:
- Virus: Replicates itself, consuming system resources and potentially shutting down operations.
- Worm: Spreads independently across systems.
- Trojan Horse: Disguised as legitimate software but malicious in nature.
- Rootkit: Obscures its presence and allows remote control of an infected machine.
- Symptoms of infection include slowed performance, memory issues, corrupted files, and unexpected system behaviors.
Protective Measures Against Internet Attacks
- Precautions to protect computers include:
- Implementing firewalls, which block unauthorized access.
- Using intrusion detection software to monitor traffic and identify breaches.
- Utilizing honeypots to lure intruders into a controlled environment.
- Botnets consist of interconnected compromised computers, with individual units referred to as zombies.
- A Denial of Service (DoS) attack disrupts access to services, often through Distributed DoS (DDoS) methods.
- Spoofing deceives users by masquerading illegitimate transmissions as trustworthy.
Unauthorized Access and Use
- Unauthorized access: Using a computer or network without permission.
- Unauthorized use: Engaging in unapproved or illegal activities on a computer or its data.
- Organizations can mitigate unauthorized actions through:
- Acceptable use policies.
- Disabling file and printer sharing.
- Firewalls and intrusion detection software.
Access Control Measures
- Access controls determine who can access computers, timing, and permissible actions.
- Identification and authentication processes rely on:
- Usernames and passwords.
- Passphrases and CAPTCHAs.
- Possessed objects like ID cards or tokens.
- Biometric devices to confirm identity using personal characteristics.
System Failures and Safeguards
- Protecting against system failures involves addressing threats from aging hardware, natural disasters, and power issues.
- Surge protectors and Uninterruptible Power Supplies (UPS) are effective against electrical power disruptions.
Data Backup Strategies
- Backups provide retrievable duplicates of files or data in case of loss.
- Offsite backups are critical for data safety, stored away from the primary system site.
- Backup categories include:
- Full backup: Complete data copy.
- Selective backup: Only critical data copied.
- The three-generation backup policy includes:
- Grandparent (oldest backup)
- Parent (current backup)
- Child (latest backup)
Wireless Security Risks
- Wireless networks often lack security measures, with about 80% remaining unprotected.
- War driving enables identifying wireless networks while driving.
- To secure wireless networks, implement the following:
- Avoid broadcasting the default SSID.
- Change the default SSID for better security.
Studying That Suits You
Use AI to generate personalized quizzes and flashcards to suit your learning preferences.
Related Documents
Description
This quiz covers Chapter 10 on Issues and Trends in Fundamentals of Information Technology. It focuses on computer security risks, types of cybercrime, internet attacks, and safeguarding techniques. Test your knowledge on preventing unauthorized access and hardware theft.
