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H
H
Ha Ha Only Serious
Hack
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Hacker code of ethics
Hacker Ethic, The
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Half-Duplex Operation
Halftone
Halftone Characteristic
hallenge-Handshake Authentication Protocol (CHAP)
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Hand geometry scanning
Hand-Hacking
Handle
Handled
Handled By
Handler
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Handling Restrictions
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Hashed Message Authentication Code
Hashing
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HCF
HD
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Header checksum
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Header length
Head-On Collision
Heads Down
Health Information Portability and Accountability Act (HIPAA[AuQ3][AuQ3])
Heartbeat
Heatseeker
Heavy Metal
Heavy Wizardry
Heavyweight
Heisenbug
Hello, Sailor!
Hello, Wall!
Hello, World
Hertz
Heuristic
Hex
Hexadecimal
Hexadecimal directory traversal attack
Hexit
HF
HHOK
HHOS
Hidden Flag
Hidden Sections
Hierarchical
Hierarchical Computer Network
Hierarchical Development Methodology (HDM)
Hierarchically Synchronized Network
High Bit
High Moby
High Order Language
High Risk Environment
High-Level Control
High-Level Data Link Control
High-Level Language
Highly
Hing
HIPAA (Health Information Portability and Accountability Act)
Hirsute
History Of Information Security
HLL
HMAC
HMAC (key-Hashed Message Authentication Code)
Hobbit
Hog
HOIS
HOIST
HOL
Hole
Holy Wars
Home Box
Home Machine
Home page
Homeland Security Act of 2002
Hook
Hop
Hose
Hosed
Host
Host assessment tools
Host Computer
Host firewall
Host IDS
Host part
Host To Front-End
Host To Front-End Protocol
Hostile Code
Hostile Cognizant Agent
Hostile Intelligence Sources
Hostile Threat Environment
Hosting companies
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Hot Spot
Hot-Standby
House Wizard
Housekeeping Procedures
HP-SUX
HSM
HTML (Hypertext Markup Language)
HTML body parts
HTTP (Hypertext Transfer Protocol)
HTTP proxy server
Https
Huff
Human Intelligence
Human Interface Functions
Human Source
Human Threats
HUMINT
Humma
Humor, Hacker
Hung
Hungry Puppy
Hungus
HUS
HUSK
Hybrid attacks
Hybrid Computer
Hybrid TCP/IP-OSI architecture
Hyperspace
Hypertext Markup Language (HTML)
Hypertext Transfer Protocol (HTTP)
Hysterical Reasons
Hz
Half-Duplex Operation
That mode of operation in which communication between two terminals occurs in either direction, but in only one direction at a time.
Note: Half-duplex operation may occur on a half-duplex circuit or on a duplex circuit, but it may not occur on a simplex circuit (def. #1). Synonyms one-way reversible operation, two-way alternate operation. See also circuit, duplex circuit, duplex operation, one-way communication, simplex circuit.
