The list of computer security acronyms and abbreviations.

All computer security related acronyms and abbreviations.

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47
ATM:
Asynchronous Transfer Mode(Data Transmission, Communications)
30
LAN:
Local Area Network(Computer network, Wireless networking)
17
ISP:
Internet Service Provider(Computer network, Wireless networking)
17
TCP:
Transmission Control Protocol(Transport Layer, Switching)
16
UDP:
User Datagram Protocol(Transport Layer, Communications protocol)
14
OSPF:
Open Shortest Path First(Network Layer Protocol, Routing)
12
VPN:
Virtual Private Network(Computer network, Wireless networking)
12
BGP:
Border Gateway Protocol(Network Layer Protocol, Routing, Data Transmission)
12
DSL:
Digital Subscriber Line(STANDARDS, Data Transmission, Communications)
11
TIA:
Telecommunications Industry Association(PHONE, Mobile phone)
10
ARP:
Address Resolution Protocol(data link layer protocol)
10
RIP:
Routing Information Protocol(Network Layer Protocol, Routing)
9
NFS:
Network File System(Networking, Network Protocol, Data Transfer)
8
NAT:
Network Address Translation(Application layer protocol, Computer network)
8
NTP:
Network Time Protocol(Communications protocol)
8
TLS:
Transport Layer Security(Security, Wireless networking)
6
FCS:
Frame Check Sequence(Networking, Computer Security, Computer)
6
PDA:
Personal Digital Assistant(Data Transmission, Communications, PHONE)
6
RFC:
Request for Comments(Computer network, Data Transmission, Communications)
6
TDM:
Time Division Multiplexing(Networking, Industrial networking, DATA)
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APASmart Define. (2017). computer security. Retrieved September 22, 2026, from http://smartdefine.org/computer_security/abbreviations/r/Networking
ChicagoSmart Define. 2017. "computer security" http://smartdefine.org/computer_security/abbreviations/r/Networking (accessed September 22, 2026).
HarvardSmart Define 2017, computer security, Smart Define, viewed 22 September, 2026, <http://smartdefine.org/computer_security/abbreviations/r/Networking>.
MLASmart Define. "computer security" 1 December 2017. Web. 22 September 2026. <http://smartdefine.org/computer_security/abbreviations/r/Networking>