The glossary below contains many of the terms you will find in common use throughout the Symantec Security Response website. Please refer to this list to find definitions of terms and answers to other Internet security-related questions.

parity bit

An extra bit (either 0 or 1) that is added to a group of bits to make it either even or odd, depending on whether even parity or odd parity is used. Parity bits are used to check for errors in data transfers between computers, usually over a modem or null modem cable.