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Computer security risks

dison gapor
dison gapor

Computer security risks include cybercrime, hackers, crackers, script kiddies, cyberextortionists, and cyberterrorists illegally accessing networks and computers. To protect against viruses and malware, precautions should be taken like not opening attachments from unknown sources, enabling macro security in programs, installing antivirus software and updating it frequently with the latest virus definitions.

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Computer Security Risks
Computer Security Risks A computer security risk is any event or action that could cause a loss of or damage to computer hardware, software, data, information, or processing capability
Cybercrime Any illegal act involving a computer generally is referred to as a computer crime. The term cybercrime refers to online or Internet-based illegal acts. Software used by cybercriminals sometimes is called crimeware. Today, cybercrime is one of the FBIs top three priorities.
Hacker Someone who accesses a computer or network illegally is called hacker. Some hackers claim the intent of their security breaches is to improve security.
Cracker A cracker also is someone who accesses a computer or network illegally but has the intent of destroying data, stealing information, or other malicious action. Both hackers and crackers have advanced computer and network skills.
Script kiddie A script kiddie has the same intent as a cracker but does not have the technical skills
Cyberextortionist (CRIMINAL LAW obtaining something by illegal threats) A cyberextortionist is someone who uses e-mail as a vehicle for extortion. These perpetrators send an organization a threatening e-mail message indicating they will expose confidential information, exploit a security flaw, or launch an attack that will compromise the organizations network if they are not paid a sum of money.
Cyberterrorist A cyberterrorist is someone who uses the Internet or network to destroy or damage computers for political reasons. The cyberterrorist might target the nations air traffic control system, electricity-generating companies, or a telecommunications infrastructure. The term, cyberwarfare, describes an attack whose goal ranges from disabling a governments computer network to crippling a country. Cyberterrorism and cyberwarfare usually require a team of highly skilled
Internet and Network Attacks Information transmitted over networks has a higher degree of security risk than information kept on an organizations premises. In an organization, network administrators usually take measures to protect a network from security risks. On the Internet, where no central administrator is present, the security risk is greater.
Security service To determine if your computer is vulnerable to an Internet or network attack, you could use an online security service. An online security service is a Web site that evaluates your computer to check for Internet and e-mail vulnera bilities
How virus can spread through Email Message
Safeguards against Computer Viruses and Other Malware Methods that guarantee a computer or network is safe from computer viruses and other malware simply do not exist. Users can take several precautions, however, to protect their home and work computers and mobile devices from these malicious infections
Precautions Do not start a computer with removable media inserted in the drives or plugged in the ports. For example, optical disc drives should be empty, and a USB port should not contain a USB flash drive. During the startup process, a computer may attempt to execute the boot sector on media in certain drives and ports. Even if the attempt is unsuccessful, a virus on the boot sector of removable media can infect the computers hard disk. If you must start the computer with media in a drive or port, be certain the media are uninfected or from a trusted source
Precautions Never open an e-mail attachment unless you are expecting the attachment and it is from a trusted source. If the e-mail message is from an unknown source or untrusted source, delete the e-mail message immediately without opening or executing any attachments.
Precautions Some viruses are hidden in macros, which are instructions saved in software such as a word processing or spreadsheet program. In programs that allow users to write macros, you should set the macro security level so that the application software warns users that a document they are attempting to open contains a macro
Precautions Users should install an antivirus program and update it frequently. An antivirus program protects a computer against viruses by identifying and removing any computer viruses found in memory, on storage media, or on incoming files.
Precautions One technique that antivirus programs use to identify a virus is to look for virus signatures. A virus signature, also called a virus definition, is a known specific pattern of virus code. Computer users should update their antivirus programs signature files regularly

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Computer security risks

  • 2. Computer Security Risks A computer security risk is any event or action that could cause a loss of or damage to computer hardware, software, data, information, or processing capability
  • 3. Cybercrime Any illegal act involving a computer generally is referred to as a computer crime. The term cybercrime refers to online or Internet-based illegal acts. Software used by cybercriminals sometimes is called crimeware. Today, cybercrime is one of the FBIs top three priorities.
  • 4. Hacker Someone who accesses a computer or network illegally is called hacker. Some hackers claim the intent of their security breaches is to improve security.
  • 5. Cracker A cracker also is someone who accesses a computer or network illegally but has the intent of destroying data, stealing information, or other malicious action. Both hackers and crackers have advanced computer and network skills.
  • 6. Script kiddie A script kiddie has the same intent as a cracker but does not have the technical skills
  • 7. Cyberextortionist (CRIMINAL LAW obtaining something by illegal threats) A cyberextortionist is someone who uses e-mail as a vehicle for extortion. These perpetrators send an organization a threatening e-mail message indicating they will expose confidential information, exploit a security flaw, or launch an attack that will compromise the organizations network if they are not paid a sum of money.
  • 8. Cyberterrorist A cyberterrorist is someone who uses the Internet or network to destroy or damage computers for political reasons. The cyberterrorist might target the nations air traffic control system, electricity-generating companies, or a telecommunications infrastructure. The term, cyberwarfare, describes an attack whose goal ranges from disabling a governments computer network to crippling a country. Cyberterrorism and cyberwarfare usually require a team of highly skilled
  • 9. Internet and Network Attacks Information transmitted over networks has a higher degree of security risk than information kept on an organizations premises. In an organization, network administrators usually take measures to protect a network from security risks. On the Internet, where no central administrator is present, the security risk is greater.
  • 10. Security service To determine if your computer is vulnerable to an Internet or network attack, you could use an online security service. An online security service is a Web site that evaluates your computer to check for Internet and e-mail vulnera bilities
  • 11. How virus can spread through Email Message
  • 12. Safeguards against Computer Viruses and Other Malware Methods that guarantee a computer or network is safe from computer viruses and other malware simply do not exist. Users can take several precautions, however, to protect their home and work computers and mobile devices from these malicious infections
  • 13. Precautions Do not start a computer with removable media inserted in the drives or plugged in the ports. For example, optical disc drives should be empty, and a USB port should not contain a USB flash drive. During the startup process, a computer may attempt to execute the boot sector on media in certain drives and ports. Even if the attempt is unsuccessful, a virus on the boot sector of removable media can infect the computers hard disk. If you must start the computer with media in a drive or port, be certain the media are uninfected or from a trusted source
  • 14. Precautions Never open an e-mail attachment unless you are expecting the attachment and it is from a trusted source. If the e-mail message is from an unknown source or untrusted source, delete the e-mail message immediately without opening or executing any attachments.
  • 15. Precautions Some viruses are hidden in macros, which are instructions saved in software such as a word processing or spreadsheet program. In programs that allow users to write macros, you should set the macro security level so that the application software warns users that a document they are attempting to open contains a macro
  • 16. Precautions Users should install an antivirus program and update it frequently. An antivirus program protects a computer against viruses by identifying and removing any computer viruses found in memory, on storage media, or on incoming files.
  • 17. Precautions One technique that antivirus programs use to identify a virus is to look for virus signatures. A virus signature, also called a virus definition, is a known specific pattern of virus code. Computer users should update their antivirus programs signature files regularly