Glossary of Terms

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A

A1

Abbrev

Abbreviated Dialing

ABEND

Abort

Aborted Connection

Above Type 2 Magnetic Media

AC

Accept

Acceptable Level Of Risk

Acceptance Certification

Acceptance Inspection

Acceptance Test

Access

Access Authorization

Access Category

Access Contention

Access Control List

Access Control List(ACL)

Access control lists (ACLs)

Access Control Measures

Access Control Mechanism

Access Control Mechanism(s)

Access Control Models

Access Control Policies

Access control policy

Access Control Roster

Access Control Software

Access Controls

Access Originator

Access Permissions

Access permissions (authorizations)

Access point. 1)

Access Privileges

Access To Information

Accessible Space

Account Administration

Account Administrator

Account Management

Accountability For Sensitive Data

Accountability Information

Accounting Legend

Accounting Legend Code (ALC)

Accounting Number

Accounting System

Accreditation Authority

ACD

ACK

ACK (Acknowledgement)

Acknowledge Character

Acknowledgement

Acknowledgement (ACK)

Acknowledgement number

ACL

ACLs (Access control lists)

Acme

Acolyte

Acoustic Coupler

Acoustic Emanation

Acoustical Intelligence

Acquisition Program

Acquisition Specification

Active Directory

Active Directory Users and Computers

Active fingerprinting

Active Server Pages

Active Wiretapping

ACU

A-D

Ada

Adaptive Channel Allocation

Adaptive Communication

Adaptive Routing

Adaptive System

ADC

ADCCP

Adder

Adder-Subtracter

Add-On Security

Address

Address Message Sequencing

Address Pattern

Address Separator

Address spoofing

Address Translation Unit

Addressable Point

Adequate Notice

Adger

ADH

ADM

Admin

Administrative Security

Administrative Security Policies And Procedures

Administrative Tools

Administrative User

Administratively Controlled Information

Administrator Of General Services

ADP

ADP Security Documentation

ADP Security Staff

ADP Storage Media

ADP System Security

ADPCM

ADPE

Advanced Data Communication Control Procedure

Advanced Development Model

Advanced Encryption Standard (AES)

Advanced Intelligent Network

ADVENT

Adversary Scenario

AE

AES

AFAIK

AFDTC

Affirm

AFJ

AFR

AFSSI

AFSSM

Agency

Agency-Specific Policies And Procedures

Agent

Aggregation Problem

AH (Authentication Header)

AI

AIG

AIN

AIOD

Air Conditioning

Air gap

AIRK

AIS

AISS

AJ

AK

AKD/RCU

AKDC

AKM

Alarm

Alarm Indicator

Alarms, Signals And Reports

ALC

ALC-3

ALC-4

ALE

Algorithmic Language

Alphabet Translation

Alphabet Transliteration

Alphabetic Character Set

Alphabetic Code

Alphabetic String

Alphabetic Word

Alphanumeric Character Set

Alphanumeric Code

Alphanumeric Data

Alt Bit

Alternate COMSEC

Alternate COMSEC Manager

Alternate Mark Inversion Signal

Alternate Routing

Alternating Current

Altmode

ALU

AMA

American National Standard Code For Information Interchange

American National Standards Institute

American Standard Code For Information Interchange (ASCII)

AMI

Amp Off

Amper

AMPS

AMS

Analog Computer

Analog Decoding

Analog Encoding

Analog Facsimile Equipment

Analog Synchronization

Analog Technology

Analog Transmission

Analog-To-Digital

Analog-To-Digital Coder

Analog-To-Digital Converter

Analog-To-Digital Encoder

ANDVT

Angry Fruit Salad

ANI

Annual cost of protection

Annual Loss Expectancy

Annual threat severity

Anomaly detection analysis

Anonymous websurfing services

ANSI

Anti-replay protection

Anti-Virus Program

Antivirus programs

AOS

AOSS

AP

Apache

APC

APD

APL

App

Append Access Mode

Application Development Control

Application firewall

Application Layer

Application layer authentication

Application monitors

Application Software

Application Software (functional)

Applications Security

Approval Accreditation

Approval To Operate

Approval/accreditation

Approved Circuit

APU

AR

ARCH:D1

ARCH:D2

Archive

Arena

ARES

Arg

Arithmetic And Logic Unit

Arithmetic Operation

Arithmetic Overflow

Arithmetic Register

Arithmetic Shift

Arithmetic Underflow

Arithmetic Unit

ARMM

ARPANET

ARQ

Array

Array Processor

Arrest

ARS

Artificial Intelligence

ASCII

ASCIIbetical Order

ASPJ

Assembly Language

Assembly Program

Assessing Controlled Access Protection

Assessments (e. G. , Surveys, Inspections)

Asset

Asset Container

Asset enumeration

Asset Granularity

Association Description

Assurance Testing

ASU

Asymmetrical warfare

Asynchronous And Synchronous Communications

Asynchronous Attack

Asynchronous Network

Asynchronous Operation

Asynchronous Transfer Mode

Asynchronous Transmission

Asynchronous Working

AT&T

ATAM

Atomic

Attachment Unit Interface

Attack

Attack automation

Attack software

Attacker-in-the-middle attack

Attempt

Attention Character

Attribute Of An Entity

AUD/D1

AUD/D2

AUD/D3

Audit

Audit Analysis Tools

Audit Collection Requirements

Audit Mechanism

Audit Parameters

Audit Reduction Tools

Audit Review File

Audit Trails And Logging

Audit Trails And Logging Policies

Auditable Events

Auditor

Authenticated User

Authentication credentials

Authentication Data Base

Authentication Equipment

Authentication Header (AH)

Authentication Period

Authentication Process

Authentication System

Authority Arrest

Authorization Process

Authorizations (access permissions)

Authorized Station

Authorized Vendor

Authorized Vendor Program

Autobogotiphobia*

AUTODIN

Auto-Manual System

Automated action

Automated Data Medium

Automated Data Processing

Automated Data Processing Equipment

Automated Data Processing Security

Automated Decision Making Computer

Automated Decision-Making System

Automated Information

Automated Information System

Automated Information System Security

Automated Information Systems Security

Automated Information Systems(s)

Automated Security

Automated Security Monitoring

Automated Security Tools

Automated System Security

Automatic Answering

Automatic Data Handling

Automatic Data Processing

Automatic Data Processing Equipment

Automatic Data Processing System

Automatic Dialing

Automatic Message Accounting

Automatic Message Processing System

Automatic Number Identification

Automatic Operation

Automatic Remote

Automatic Remote Rekeying

Automatic Remote Reprogramming And Rekeying

Automatic Repeat-Request

Automatic Route Selection

Automatic Secure Voice Communications Network (AUTOSEVOCOM)

Automatic Voice Network

Automation Security

AUTOVON

Auxiliary Operation

Auxiliary Power

Auxiliary Storage

AV

Availability Of Data

Avatar

Average Rate Of Transmission

Avoiding Information Monopolies

AVP

Awk*

ASCII

[acronym American Standard Code for Information Interchange]
Code for representing simple English letters, digits, and other keyboard characters, plus a few control codes. Each character is represented by a seven-bit string, which is stored in a byte.
The predominant character set encoding of present-day computers. The modern version uses 7 bits for each character, whereas most earlier codes (including an early version of ASCII) used fewer. This change allowed the inclusion of lowercase letters -- a major win -- but it did not provide for accented letters or any other letterforms not used in English (such as the German sharp-S or the ae-ligature which is a letter in, for example, Norwegian). It could be worse, though. It could be much worse. See EBCDIC to understand how. Computers are much pickier and less flexible about spelling than humans; thus, hackers need to be very precise when talking about characters, and have developed a considerable amount of verbal shorthand for them. Every character has one or more names -- some formal, some concise, some silly. Common jargon names for ASCII characters are collected here.