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Computer Security

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Danz Magdaraog
Danz Magdaraog

This document defines and describes several common types of malware and cyber threats. It explains that viruses, worms, and Trojan horses are programs that can infect computers without permission and open them up to attacks. It also discusses phishing scams, spyware, adware, wireless hacking, bluejacking which steals Bluetooth data, and social engineering which tricks users into revealing private information.

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Computer Security
Computer Security
Computer Security
Computer Security
ï‚¡ A virus is a parasitic program written intentionally to alter the way your computer operates without your permission or knowledge.
ï‚¡ Trojan horses are programs that appear to serve some useful purpose or provide entertainment, which encourages you to run them.
ï‚¡ Worms are programs that replicate and spread, often opening a back door to allow hackers to gain access to the computers that they infect.
ï‚¡ A Zombie is a dormant program that lies inactive on a computer. It can be activated remotely to aid a collective attack on another computer.
ï‚¡ A Phishing attack is when you are sent an email that asks you to click on a link and re- enter your bank or credit card details.
ï‚¡ These sites are often made to look like well known web sites and can have similar web addresses to the sites they are imitating. Users who visit these sites often inadvertently download and run a virus or Trojan and can then become infected or the subject of hacker attacks.
ï‚¡ Spyware, Adware and Advertising Trojans are often installed with other programs, usually without your knowledge. They record your behaviour on the Internet, display targeted ads to you and can even download other malicious software on to your computer.
ï‚¡ Virus hoaxes are messages, usually sent by email, that amount to little more than chain letters.
ï‚¡ If a wireless access point, e.g. an ADSL (Broadband) Router, hasn't been secured then anyone with a wireless device (laptop, PDA, etc) will be able to connect to it and thereby access the Internet and all the other computers on the wireless network.
ï‚¡ The act of stealing personal data, specifically calendar and contact information, from a Bluetooth enabled device.
ï‚¡ Tricking computer users into revealing computer security or private information, e.g. passwords, email addresses, etc, by exploiting the natural tendency of a person to trust and/or by exploiting a person's emotional response.
Danny D. J. Magdaraog

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Computer Security

  • 5. ï‚¡ A virus is a parasitic program written intentionally to alter the way your computer operates without your permission or knowledge.
  • 6. ï‚¡ Trojan horses are programs that appear to serve some useful purpose or provide entertainment, which encourages you to run them.
  • 7. ï‚¡ Worms are programs that replicate and spread, often opening a back door to allow hackers to gain access to the computers that they infect.
  • 8. ï‚¡ A Zombie is a dormant program that lies inactive on a computer. It can be activated remotely to aid a collective attack on another computer.
  • 9. ï‚¡ A Phishing attack is when you are sent an email that asks you to click on a link and re- enter your bank or credit card details.
  • 10. ï‚¡ These sites are often made to look like well known web sites and can have similar web addresses to the sites they are imitating. Users who visit these sites often inadvertently download and run a virus or Trojan and can then become infected or the subject of hacker attacks.
  • 11. ï‚¡ Spyware, Adware and Advertising Trojans are often installed with other programs, usually without your knowledge. They record your behaviour on the Internet, display targeted ads to you and can even download other malicious software on to your computer.
  • 12. ï‚¡ Virus hoaxes are messages, usually sent by email, that amount to little more than chain letters.
  • 13. ï‚¡ If a wireless access point, e.g. an ADSL (Broadband) Router, hasn't been secured then anyone with a wireless device (laptop, PDA, etc) will be able to connect to it and thereby access the Internet and all the other computers on the wireless network.
  • 14. ï‚¡ The act of stealing personal data, specifically calendar and contact information, from a Bluetooth enabled device.
  • 15. ï‚¡ Tricking computer users into revealing computer security or private information, e.g. passwords, email addresses, etc, by exploiting the natural tendency of a person to trust and/or by exploiting a person's emotional response.
  • 16. Danny D. J. Magdaraog