The illegal use of an individual's personal or financial information to apply for credit by a criminal without the owner's permission or knowledge.
immunization
See live protection.
initialization vector
The part of a security key that helps scramble information differently each time a chunk of encrypted data is transmitted.
Internet Service Provider (ISP)
A company that provides access to the Internet.
intranet
A private network that uses web technology to distribute information. Usually used to make information available inside a company among employees .
IP address
Internet Protocol address. A numerical address consisting of four sets of numbers separated by dots ranging from 0 to 255 that is assigned to each computer on the Internet or closed network.
IP spoofing
A bit of high-tech trickery that makes an email (or some other piece of transmitted data) look like it came from somewhere it did not. It's like sending a letter to your friend and changing the return address on the envelope to make it appear like it came from George Bush's vet or Oprah's dry cleaner.