Archive for June, 2010

chapter 9


2010
06.10

in chapter 9 we have been talking about computer saftey and all about viruses.

internal threats – cause a melicious threat or a accidental threat

external threats – ouside users can atatck.

a worm is a self repulactating virus that duplicates itself when it  gets on a network.

a trojan horse is known for its way to get inot the network. it pretends that it is something good and it is reaaly something bad.

  • DoS – Sends abnormally large amounts of requests to a system preventing access to the services
  • DDoS – Uses “zombies” to make tracing the origin of the DoS attack difficult to locate
  • Spoofing – Gains access to resources on devices by pretending to be a trusted computer
  • Adware, spyware, and grayware are usually installed on a computer without the knowledge of the user. These programs collect information stored on the computer

    Phishing is a form of social engineering where the attacker pretends to represent a legitimate outside organization, such as a bank. A potential victim is contacted via e-mail. The attacker might ask for verification of information, such as a password or username, to supposedly prevent some terrible consequence from occurring