Glossary: acronym
450 entries of kind acronym, listed alphabetically.
- 802.1QIEEE 802.1Q (VLAN tagging)
- 802.1XIEEE 802.1X (port-based network access control)
- 802.3IEEE 802.3 (Ethernet)
- AAAAAAAA record (IPv6 address record)
- ABNT (Associação Brasileira de Normas Técnicas)
- ACIDAtomicity, Consistency, Isolation, Durability
- ACL
- ACMEAutomatic Certificate Management Environment
- ACSAssertion Consumer Service
- ADActive Directory
- ADCapplication delivery controller
- ADSL
- ADSPApplication Delivery and Security Platform
- AEADAuthenticated Encryption with Associated Data
- AESAdvanced Encryption Standard
- AiTM (adversary-in-the-middle phishing)
- AJAXAsynchronous JavaScript and XML
- ALPNApplication-Layer Protocol Negotiation
- ANPD
- Apache Software Foundation (ASF)
- APT (Advanced Persistent Threat)
- ARC (Authenticated Received Chain)
- ARP
- AS (autonomous system)autonomous system
- AS3Application Services 3 Extension
- ASIC
- ASLRaddress space layout randomization
- ASNautonomous system number
- ATMAsynchronous Transfer Mode
- ATP (Advanced Threat Protection)
- AWSAmazon Web Services
- BADoSBehavioral Denial of Service
- BEBBackbone Edge Bridge
- BFDBidirectional Forwarding Detection
- BGPBorder Gateway Protocol
- BINDBerkeley Internet Name Domain
- BSDBerkeley Software Distribution
- BUMbroadcast, unknown unicast, and multicast
- BYOD
- BYOIP
- C2command and control
- C3DClient Certificate Constrained Delegation
- C5Cloud Computing Compliance Criteria Catalogue (BSI)
- CAcertificate authority
- CAACertification Authority Authorization record
- CAN (campus area network)
- CAPTCHACompletely Automated Public Turing test to tell Computers and Humans Apart
- CAPWAP (controller-based wireless)
- CASB
- CBCCipher Block Chaining
- CCI
- CCMCounter with CBC-MAC
- CCPA / CPRA
- CDATAcharacter data (XML)
- CDCiber (Centro de Defesa Cibernética)
- CDN
- CE (Customer Edge)Customer Edge node
- CERT (team)Computer Emergency Response Team
- Certificate Transparency (CT)
- CGNAT
- CHAPChallenge-Handshake Authentication Protocol
- CIDRClassless Inter-Domain Routing
- CISSPCertified Information Systems Security Professional ((ISC)2)
- CLICommand-Line Interface
- CMDB
- CMTS
- CNAMECanonical Name record
- CNAPP
- COBITControl Objectives for Information and Related Technologies (ISACA)
- Content Security PolicyContent Security Policy (CSP)
- CORSCross-Origin Resource Sharing
- COS
- CPE
- CRLCertificate Revocation List
- CRUDCreate, Read, Update, Delete
- CSA STARCSA Security, Trust, Assurance and Risk registry
- CSMA/CACarrier Sense Multiple Access with Collision Avoidance
- CSMA/CDCarrier Sense Multiple Access with Collision Detection
- CSPM
- CSRCertificate Signing Request
- CSRFCross-Site Request Forgery
- CVECommon Vulnerabilities and Exposures
- CVSSCommon Vulnerability Scoring System
- CWECommon Weakness Enumeration
- CWNP / CWNACertified Wireless Network Professional program (CWNA flagship)
- CWPP
- DADDuplicate Address Detection
- DARPA (Defense Advanced Research Projects Agency)
- DCVDomain Control Validation
- DCWF (DoD Cyber Workforce Framework)
- DDoSDistributed Denial of Service
- DERDistinguished Encoding Rules
- DFDual-Fan (F5 hardware variant)
- DHDiffie-Hellman
- DHCP
- DICTDictionary Server Protocol
- DKIMDomainKeys Identified Mail
- DLP
- DMARC (Domain-based Message Authentication, Reporting and Conformance)
- DMZ
- DNSDomain Name System
- DNS over HTTPSDNS over HTTPS (DoH)
- DNSKEYDNS Public Key (record)
- DNSSECDomain Name System Security Extensions
- DOCSIS
- DoD (United States Department of Defense)
- DoHDNS over HTTPS
- DoTDNS over TLS
- DPDDead Peer Detection (IKE/IPsec liveness)
- DPI (Deep Packet Inspection)
- DPIA
- DPO
- DSAR
- DSLAM
- DTLSDatagram Transport Layer Security
- DVMRPDistance Vector Multicast Routing Protocol
- DWDMDense Wavelength Division Multiplexing
- E1E1 (2.048 Mb/s, 32 timeslots)
- ECDHElliptic-Curve Diffie-Hellman
- ECDHEEphemeral Elliptic-Curve Diffie-Hellman
- ECDSAElliptic Curve Digital Signature Algorithm
- ECMAEuropean Computer Manufacturers Association
- ECMP
- ECSEDNS Client Subnet
- EDNSExtension Mechanisms for DNS
- EDR
- EFFElectronic Frontier Foundation
- EGPExterior Gateway Protocol (the class, and the historical protocol)
- EHFEngineering Hotfix
- EIA/TIAElectronic Industries Alliance / Telecommunications Industry Association
- EIGRPEnhanced Interior Gateway Routing Protocol
- ENE
- ENI
- EOLend of life
- EPSSExploit Prediction Scoring System
- ES256ECDSA signature with SHA-256 (JWA identifier)
- ESPEncapsulating Security Payload
- EUIExtended Unique Identifier
- EXOSExtreme Operating System (ExtremeXOS)
- FA (Fabric Attach)Fabric Attach
- FedRAMPFederal Risk and Authorization Management Program
- FIPSFederal Information Processing Standards
- FIRST (org)Forum of Incident Response and Security Teams
- FLOSSFree/Libre and Open Source Software
- FPGA
- FQDNFully Qualified Domain Name
- FTPFile Transfer Protocol
- FTPSFTP over TLS
- FTTH
- FUDFear, Uncertainty, and Doubt
- GCMGalois/Counter Mode
- GDBGNU Debugger
- GDPRGeneral Data Protection Regulation
- GENEVE
- GIGOgarbage in, garbage out
- GOPHERGopher protocol
- GOSIP
- GPL (GNU General Public License)
- GPO
- GPON
- GRE
- GRE tunnel
- GSLB
- GUIgraphical user interface
- HDLCHigh-Level Data Link Control
- HFhigh frequency
- HFC
- HIPAAHealth Insurance Portability and Accountability Act
- HMACHash-based Message Authentication Code
- HOTPHMAC-based One-Time Password
- HQCHamming Quasi-Cyclic
- HS256HMAC with SHA-256 (JWA identifier)
- HSM
- HSTSHTTP Strict Transport Security
- IaaS / PaaS / SaaS
- IAM
- IANAInternet Assigned Numbers Authority
- ICANNInternet Corporation for Assigned Names and Numbers
- ICAPInternet Content Adaptation Protocol
- ICMPInternet Control Message Protocol
- IDCMA
- IEEEInstitute of Electrical and Electronics Engineers
- IETFInternet Engineering Task Force
- IGMPInternet Group Management Protocol
- IGPInterior Gateway Protocol
- IISInternet Information Services
- IKEInternet Key Exchange
- IKEv2
- IMAPInternet Message Access Protocol
- IMAPSIMAP over TLS
- IMDS
- IMP
- Inmetro
- IoCindicator of compromise
- IOS (Cisco)Internetwork Operating System
- IPAM
- IPoE
- IPSintrusion prevention system
- IPsec
- IPX/SPXInternetwork Packet Exchange / Sequenced Packet Exchange
- IRAPInformation Security Registered Assessors Program (Australia)
- IRC (Internet Relay Chat)
- IS-ISIntermediate System to Intermediate System
- ISO/IEC 27001ISO/IEC 27001 (Information Security Management System)
- ISO/IEC 27017ISO/IEC 27017 (cloud security controls)
- ISO/IEC 27018ISO/IEC 27018 (PII protection in the cloud)
- ISPinternet service provider
- ISRGInternet Security Research Group
- ITIL
- IVinitialization vector
- IXP
- JA3JA3 TLS client fingerprint
- JA4JA4 TLS client fingerprint (JA4+ suite)
- JWICS
- JWKJSON Web Key
- JWKSJSON Web Key Set
- JWSJSON Web Signature
- JWTJSON Web Token
- KDFkey derivation function
- KMS
- L2TP
- L3Layer 3 (the network layer)
- L4Layer 4 (the transport layer)
- L7Layer 7 (the application layer of the OSI model)
- LACNICLatin American and Caribbean Internet Addresses Registry - and the region's operator meetings
- LACP
- LAN
- LANELAN Emulation (over ATM)
- large language model (LLM)
- LBload balancer
- LCSlongest common subsequence
- LDAPLightweight Directory Access Protocol
- LDAPSLDAP over TLS
- LDNSlocal DNS resolver
- LGPD
- LGTMlooks good to me
- LLDP
- LLMLarge Language Model
- MAC (message authentication code)Message Authentication Code
- MAN
- MANRS (Mutually Agreed Norms for Routing Security)
- MCPModel Context Protocol
- MD5Message Digest 5
- MDF / IDF
- MDM
- MDNMozilla Developer Network
- MFAMulti-Factor Authentication
- MIMEMultipurpose Internet Mail Extensions
- ML-KEMModule-Lattice Key Encapsulation Mechanism
- MPLS
- MQTTMessage Queuing Telemetry Transport
- MQTTSMQTT over TLS
- MSRDPMicrosoft Remote Desktop Protocol
- MSSMaximum Segment Size
- MTA-STS (and DANE for mail)
- MTTR
- MTUMaximum Transmission Unit
- Multilink PPPMultilink PPP (MP / ML-PPP)
- MWCMobile World Congress - the GSMA's Barcelona telecom mega-show
- MXMail Exchange record
- NANOGNorth American Network Operators' Group - the operators' town hall since 1994
- NATNetwork Address Translation
- NAT-T
- NCP
- network ACL (cloud)
- NFV
- NIPRNet
- NIS2Network and Information Security Directive 2 (EU)
- NISTNational Institute of Standards and Technology
- NIST CSF (Cybersecurity Framework)
- NIST CSRC (Computer Security Resource Center)
- NORAD (North American Aerospace Defense Command)
- NSECNext Secure (record)
- NSEC3Next Secure version 3 (record)
- NTLMNT LAN Manager
- NTPNetwork Time Protocol
- NVDNational Vulnerability Database
- NVGRE
- OCSPOnline Certificate Status Protocol
- OGNL (Object-Graph Navigation Language)
- OIDCOpenID Connect
- OKRObjectives and Key Results
- OLT
- ONT
- OPSECoperations security
- OPTOption (pseudo-record)
- OSINET
- OSPF
- OTDR
- OTPone-time password
- OWASPOpen Worldwide Application Security Project
- PACProxy Auto-Config
- PAN
- PAPPassword Authentication Protocol
- Path MTU DiscoveryPath MTU Discovery (PMTUD)
- PCI DSSPayment Card Industry Data Security Standard
- PDFPortable Document Format
- PEBKACproblem exists between keyboard and chair
- PEMPrivacy-Enhanced Mail
- PGP (Pretty Good Privacy)
- PIIPersonally Identifiable Information
- PIMProtocol Independent Multicast
- PINpersonal identification number
- PKCEProof Key for Code Exchange
- PKIPublic Key Infrastructure
- PMTUD
- PoE
- PoP
- POP3Post Office Protocol version 3
- PoSPacket over SONET/SDH
- POSIXPortable Operating System Interface
- POTS
- PPPPoint-to-Point Protocol
- PPPoE
- PPTP
- PRFPseudorandom Function
- PRIpriority value (syslog)
- PSSProbabilistic Signature Scheme
- PTP (Precision Time Protocol)
- PTRPointer record (reverse DNS)
- PVAPacket Velocity ASIC
- QAquality assurance
- QATQuickAssist Technology
- QoSQuality of Service
- QRQuick Response (code)
- RADIUS
- RAGRetrieval-Augmented Generation
- RBAC
- ReDoSRegular expression Denial of Service
- RESTRepresentational State Transfer
- RFC 2544
- RIPRouting Information Protocol
- RJ45RJ45 (8P8C modular connector)
- RMA
- RNGrandom number generator
- RNP (Rede Nacional de Ensino e Pesquisa)
- RPKIResource Public Key Infrastructure
- RPMRPM Package Manager
- RPO and RTO (recovery objectives)
- RPZResponse Policy Zone
- RS256RSA signature with SHA-256 (JWA identifier)
- RSARivest-Shamir-Adleman
- RTFMread the fine manual
- RTMPReal-Time Messaging Protocol
- RTSPReal-Time Streaming Protocol
- SAMLSecurity Assertion Markup Language
- SANSubject Alternative Name
- SAP (Novell)Service Advertising Protocol (Novell NetWare)
- Sarbanes-Oxley (SOX)
- SASESecure Access Service Edge
- SBOM
- SBSeg (Simpósio Brasileiro de Segurança)
- SCPSecure Copy Protocol
- SD-WAN
- SDLCSynchronous Data Link Control (IBM)
- SDN
- SEC1Standards for Efficient Cryptography 1
- SFP transceiver
- SFTPSSH File Transfer Protocol
- SHASecure Hash Algorithm
- SIInternational System of Units
- SID (I-SID)Service Identifier
- SIEM
- SIISubscriber Identity Information
- SIKESupersingular Isogeny Key Encapsulation
- SIPSession Initiation Protocol
- SIPRNet
- SIRTSecurity Incident Response Team
- SISBIN (Sistema Brasileiro de Inteligência)
- SISCOMIS (Sistema de Comunicações Militares por Satélite)
- SLA
- SLAAC
- SLIPSerial Line Internet Protocol
- SLOService Level Objective
- SMBServer Message Block
- SMTPSimple Mail Transfer Protocol
- SNASystems Network Architecture (IBM)
- SNATsource network address translation
- SNIServer Name Indication
- SNMP
- SNR
- SNTP (Simple Network Time Protocol)
- SOAStart of Authority record
- SOAPSimple Object Access Protocol
- SOAR
- SOCSecurity Operations Center
- SOC 2System and Organization Controls 2
- SOLIDsingle responsibility, open-closed, Liskov substitution, interface segregation, dependency inversion
- SONETSynchronous Optical Network (SDH internationally)
- SPBMShortest Path Bridging MAC mode
- SPFSender Policy Framework
- SPNService Principal Name
- SQLStructured Query Language
- SRVService record
- SS7
- SSESecurity Service Edge
- SSHSecure Shell
- SSMA
- SSO
- SSRF
- STPSpanning Tree Protocol
- T1T1 / DS1 (1.544 Mb/s, 24 channels)
- TAC
- TAIInternational Atomic Time
- TELNETTeletype Network
- TFTPTrivial File Transfer Protocol
- TL;DRtoo long; didn't read
- TLDtop-level domain
- TLSTransport Layer Security
- TOTPTime-based One-Time Password
- TPSTransactions Per Second
- TSIGTransaction Signature
- TTLTime To Live
- TTPtactics, techniques, and procedures
- TXTText record
- ULIDUniversally Unique Lexicographically Sortable Identifier
- UTCCoordinated Universal Time
- UTPUnshielded Twisted Pair
- UUCP (Unix-to-Unix Copy)
- VHF / UHFvery high frequency / ultra high frequency
- VIPvirtual IP
- VLAN
- VLSMVariable-Length Subnet Masking
- VPC
- VPNVirtual Private Network
- VRF
- VRRP / HSRPVirtual Router Redundancy Protocol (and the first-hop redundancy family: HSRP, GLBP)
- VXLAN
- WADWeb Application Daemon (FortiGate)
- WAFWeb Application Firewall
- WAN
- WCCPWeb Cache Communication Protocol
- WebAuthn (and FIDO2, CTAP)
- WLAN
- WPAWi-Fi Protected Access
- WPADWeb Proxy Auto-Discovery
- WSWebSocket
- WSSWebSocket Secure (WebSocket over TLS)
- X.21ITU-T X.21 (circuit-switched serial interface)
- X.25ITU-T X.25 (packet-switched WAN)
- XDR
- XNSXerox Network Systems
- XSSCross-Site Scripting
- XXEXML External Entity
- YAMLYAML Ain't Markup Language
- ZCC
- ZDX
- ZIA
- ZPA
- ZTNA