Computer Security

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Computer Security
Peter Fedyszyn
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What is Computer Security?

• -Computer security is an area of computer science
  which deals with the risks of control, related to
  computer usage
• -used to create a secure system that allows only
  certain actions to be performed by the
  appropriate user or source
• -Actions include the operation of access,
  modification, and storage/deletion. Example If
  the user chose not to allow modification of a
  file to others, he/she may have programmed
  password or code security.

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Secure systems

• -A secure system on a computer begins in an
  authorized state and will never enter an
  unauthorized state.
• -An un-secure system is a system performing tasks
  without proper authorization. These tasks would
  include access, modification, and deletion to
  restricted files and pages.

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Prevention and detection methods

• Security programs can both prevent and detect
  intrusions.
• Prevention measures let you keep intruders from
  accessing any part of your computer system.
• Detection informs you whether or not someone
  attempted to break into your system, if they were
  successful, and what they may have done.
• harmful codes include viruses, spyware, malware,
  and other infected programs

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There are programs to help!

• Many computer companies manufacture programs to
  rid harmful codes from a computer. Often, they
  can detect or remove the problems at once. Some,
  like Symantec, are a bit more effective and
  popular.

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Firewall Protection

• -Firewall is a program that monitors what comes
  in and out of a computer.
• -regulates network traffic checking for
  anything suspicious.
• -If the site does not appear right, the
  firewall may prevent its access or postpone and
  look for proper clearance.
• -records where each piece of information came
  from
• -You decide whats allowed in and what is not.

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Why YOUR Computer?

• There are countless reasons why someone would
  want to infect your computer. Common ones
  include
• -credit card number usage
• -bank account information
• -file and program copying
• -any modifying that would benefit them

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Just as a burglar robs a house, someone can rob
your computer. Some of these people are like
salesmen. In hopes that someone will bite, they
bait their hooks with tempting messages like free
downloads or phony advertisements.
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Dont be their next victim!

• Avoid downloading things like
• winning advertising
• free music
• free movies
• Pornography
• Anything you think is suspicious
• Lastly, buy and install a program to help detect
  and rid your computer of harmful intrusions

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Sources http//www.cert.org/homeusers/HomeComp
uterSecurity/ http//en.wikipedia.org/wiki/Compute
r_security http//www.alw.nih.gov/Security/