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L
L2TP
Label
Labeled Security Protection
Labeling
Lace Card
Lamer
LAN
LAN (Local Area Network)
LAN Manager
LAND attack
Land Mobile Service
Land Mobile Station
Land Station
Landscape Mode
Language
Language Lawyer
Language Processor
Languages Of Choice
LANMAN
Laptop Computer
Larval Stage
Lase
Laser
Laser Chicken
Laser Intelligence
Lasherism
LASINT
Last-In, First-Out
LATA
Latent fingerprint
Lattice
Lattice Model
Laundromat
Law Enforcement Interfaces
Laws, Regulations, And Other Public Policies
Layer 2 Tunneling Protocol (L2TP)
LDB
LEAD
Leaf Site
Leak
Leaky Heap
Leapfrog Attack
Learning aids
Leased-Line Networks
Least Privilege
Leech
Legacy security technology
Legal
Legal And Liability Issues
Legalese
Legitimate User
LER
LERP
Lessons Learned
Let The Smoke Out
Letterbomb
Level
Level I/II/III
Level Of Trust
Lexer
Lexiphage
Liberty Alliance
Life
Life Cycle
Life Cycle Security
Life Cycle System Security Planning
Life Is Hard
Life-Cycle
Life-Cycle Security
LIFO
Light Pipe
Lightweight
Like Kicking Dead Whales Down The Beach
Like Nailing Jelly To A Tree
Likelihood of a threat
LIMDIS
LIMFACS
Limited Access
Limited Access Area
Limited Access Security Mode
Limited ADP Access Security Mode
Limited Area
Limited Exclusion Area
Limited Maintenance
Limited Protection
Line
Line Authentication
Line Conduction
Line Conductors
Line Eater, The
Line Load Control
Line Noise
Line Of Sight
Line Starve
Linear Analog Synchronization
Linear Predictive Coding
Linear Programming
Linearithmic
Link
Link Control Protocol
Link Encryption
Link Farm
Link Layer
Link Level
Link Protocol
Linkage
Link-By-Link Encipherment
Link-By-Link Encryption
Link-Dead
Lint
Linux
LINUX distribution
Lion Food
Lions Book
LISP
List Oriented
List-Based Access Controls
List-Oriented
Literature Intelligence
Literature, The
Lithium Lick
LITINT
Little-Endian
Live
Live Data
Live Free Or Die!
Live testing
Livelock
Liveware
LKG
LLC
LLNL
LMD
LME
LMI
Lobotomy
Local Area Network
Local Area Network (LAN)
Local Area Network Security
Local Exchange Loop
Local Nationals
Local Users and Groups
Locals, The
LOCK
Lock down
Lock-And-Key Protection System
Locked And Loaded
Locked Up
Lockout
Log
Log entry
Logging
Logic bomb
Logical
Logical Access Control
Logical Circuit
Logical Completeness
Logical Completeness Measure
Logical Link Control Sublayer
Logical Signaling Channel
Logical Topology
Login
Login History
Login password
Login/log In
Log-Off
Logoff/log Off
Logon
Log-On
Logon/log On
Logs And Journals
Long Title
Long-Haul Communication
Long-Range Plan
Loop
Loop Through
Loop-Back
Loophole
Loose Bytes
Lord High Fixer
LOS
Lose
Lose Lose
Loser
Losing
Loss
Lossage
Lost Call
Lost In The Noise
Lost In The Underflow
Lots Of MIPS But No I/O
Low Power
Low Probability Of
Low Probability Of Detection
Low Probability Of Intercept
Low Water Mark
Low-Bandwidth
LP
LPC
LPD
LPI
LPT
LRIP
Ls
LSI
LTHE
Lubarsky's Law Of Cybernetic Entomology
Lunatic Fringe
Lurker
Luser
Logical
adj. [from the technical term `logical device', wherein a physical device is referred to by an arbitrary `logical' name] Having the role of. If a person (say, Les Earnest at SAIL) who had long held a certain post left and were replaced, the replacement would for a while be known as the `logical' Les Earnest. (This does not imply any judgment on the replacement. ) Compare virtual. At Stanford, `logical' compass directions denote a coordinate system in which `logical north' is toward San Francisco, `logical west' is toward the ocean, etc. , even though logical north varies between physical (true) north near San Francisco and physical west near San Jose. (The best rule of thumb here is that, by definition, El Camino Real always runs logical north-and-south. ) In giving directions, one might say "To get to Rincon Tarasco restaurant, get onto El Camino Bignum going logical north. " Using the word `logical' helps to prevent the recipient from worrying about that the fact that the sun is setting almost directly in front of him. The concept is reinforced by North American highways which are almost, but not quite, consistently labeled with logical rather than physical directions. A similar situation exists at MIT Route 128 (famous for the electronics industry that has grown up along it) is a 3-quarters circle surrounding Boston at a radius of 10 miles, terminating near the coastline at each end. It would be most precise to describe the two directions along this highway as `clockwise' and `counterclockwise', but the road signs all say "north" and "south", respectively. A hacker might describe these directions as `logical north' and `logical south', to indicate that they are conventional directions not corresponding to the usual denotation for those words. (If you went logical south along the entire length of route 128, you would start out going northwest, curve around to the south, and finish headed due east, passing along one infamous stretch of pavement that is simultaneous