.Glossary of Internet Terms

 

Glossary of Internet Terms

  • Phishing: Phishing attacks use ”spoofed” e-mails and fraudulent Web sites designed to fool recipients into divulging personal financial data such as credit card numbers, account usernames and passwords, Social Security numbers, etc.
    By hijacking the trusted brands of well-known banks, online retailers and credit card companies, phishers are able to convince up to 5% of recipients to respond to them.
  • Firewall: A system designed to prevent unauthorized access to or from a private network. Firewalls can be implemented in both hardware and software, or a combination of both.
    Firewalls are frequently used to prevent unauthorized Internet users from accessing private networks connected to the Internet, especially intranets.
    All messages entering or leaving the intranet pass through the firewall, which examines each message and blocks those that do not meet the specified security criteria.
  • Patch: Also called a service patch, a fix to a program bug. A patch is an actual piece of object code that is inserted into (patched into) an executable program. Patches typically are available as downloads over the Internet.
  • Computer Virus: A program or piece of code that is loaded onto your computer without your knowledge and runs against your wishes. Viruses can also replicate themselves. All computer viruses are manmade.
    A simple virus that can make a copy of its self over and over again is relatively easy to produce. Even such a simple virus is dangerous because it will quickly use all available memory and bring the system to a halt.
    An even more dangerous type of virus is one capable of transmitting itself across networks and bypassing security systems.
  • Antivirus Software: A utility that searches a hard disk for viruses and removes any that are found. Most antivirus programs include an auto-update feature that enables the program to download profiles of new viruses so that it can check for the new viruses as soon as they are discovered.