61,984 articles
Secure Boot
Secure Boot is a UEFI security specification that verifies boot software signatures to ensure a PC boots using only trusted programs. Windows 11 requires this firmware capability.
Secure Enclave (Apple)
The Secure Enclave is a dedicated secure subsystem in Apple chips, isolated from the main processor to protect fingerprint and face data, encryption keys, and the passcode.
Secure multi-party computation
Secure multi-party computation (MPC) is a family of cryptographic protocols in which mutually distrusting parties jointly compute an agreed function on their private inputs, learning only the output.
Secure precoding
Secure precoding is a physical layer security technique in which a multi-antenna transmitter designs its precoding matrix to direct confidential signals toward legitimate receivers while suppressing the signal reaching eavesdroppers, often combined with artificial noise.
Secure Shell
Secure Shell (SSH), also called the Secure Shell Protocol, is a protocol for secure remote login over an insecure network, typically using TCP port 22, created by Tatu Ylönen in 1995.
Secure Sockets Layer
Secure Sockets Layer (SSL) was a family of cryptographic protocols developed at Netscape to keep client and server communication private over the Internet, enabling e-commerce.
SÉCURITÉ
SÉCURITÉ, pronounced say-cure-a-tay, is the international radiotelephony safety signal, spoken three times to announce an important navigational or meteorological warning, ranking below PAN-PAN and MAYDAY.
Securitize Corp.
Securitize Corp. is an American financial technology company, founded in 2017 by Carlos Domingo, that issues, manages, and trades tokenized securities and runs BlackRock's BUIDL fund.
Security Account Manager
The Security Account Manager (SAM), also known as the SAM file, is the Windows registry database that stores credentials and password hashes for local user accounts.
Security Assertion Markup Language
Security Assertion Markup Language (SAML) is an XML-based open standard developed by OASIS for exchanging security information, used mainly for web-based single sign-on in enterprise, government, and education.
Security controls
Security controls, also called IA controls, are safeguards protecting the confidentiality, integrity, and availability of systems and information, cataloged in frameworks such as NIST SP 800-53 and ISO/IEC 27001.
Security Credential Management System
The Security Credential Management System (SCMS) is a public key infrastructure developed for the US Department of Transportation to secure vehicle-to-vehicle communication while protecting vehicle owners' privacy.
Security engineering
Security engineering, also called information systems security engineering, applies scientific and engineering principles to build trustworthy systems that resist attack across their whole life cycle, guided by principles like least privilege.
Security Identifier
A security identifier (SID), also called a Windows SID, is a variable-length value Windows uses to identify security principals such as accounts and groups in access control.
Security information and event management
Security information and event management (SIEM) is a class of software that collects and analyzes security event data from on-premises and cloud environments, a term Gartner coined in 2005.
Security management
Security management, also called security management studies, is the set of governance, risk, and operational activities by which an organization protects its information, systems, and services.
Security Measures
Security measures: protective actions, devices, procedures, and policies reducing vulnerability across physical, cyber, and administrative domains; assessed via CISA SAFE, NIST SP 800-171A, NFPA 730, and ISC standards.
Security orchestration, automation and response
Security orchestration, automation and response (SOAR) is a category of security operations software that ingests alerts from SIEM platforms and triggers playbooks that automate security activities.
Security paper
Security paper is paper with protective elements such as watermarks, security fibers, and threads built in during manufacture, best known as the substrate of banknotes.
Security printing
Security printing, also called security print, produces documents that are difficult to counterfeit, alter, or copy, serving governments and central banks for currency, identification documents, and tax stamps.
Security through obscurity
Security through obscurity, also called security by obscurity, is protecting a system by keeping its design or mechanisms secret rather than relying on keys alone, contrary to Kerckhoffs's principle of 1883.
Security token
A security token, also called a hardware or authentication token, is a device or credential used to authenticate an identity, from one-time password generators to OAuth access tokens.
Security-constrained unit commitment
Security-constrained unit commitment (SCUC) is the optimization problem of scheduling power generators, typically over 24 hours, at minimum cost while respecting transmission limits and credible outages.
Security-Enhanced Linux
Security-Enhanced Linux (SELinux) is a set of mandatory access control mechanisms in the Linux kernel, developed by the NSA and shipped by default in Red Hat Enterprise Linux and Android.
Sed
Sed (Stream EDitor) is a Unix command-line utility that transforms text in a single pass, written by Lee E. McMahon at Bell Laboratories around 1973.
Sedan (automobile)
A sedan, known as a saloon in British English, is a four-door passenger car with a three-box body: separate engine bay, cabin, and enclosed trunk behind a fixed rear seat.
Sedapal
Sedapal (Servicio de Agua Potable y Alcantarillado de Lima) is Peru's state-owned water and sewerage utility, the sole authorized provider in metropolitan Lima and Callao since 1981.
Sediment flushing
Sediment flushing is a reservoir management operation in which low-level outlets in a dam are opened so flowing water carries deposited sediment downstream, recovering storage lost to sedimentation.
Sedimentation (water treatment)
Sedimentation in water treatment is a solid-liquid separation process in which suspended particles settle by gravity in a quiescent basin, used for clarification in drinking water and wastewater plants.
See Robertson Structural Engineers
See Robertson Structural Engineers is a consulting structural engineering firm co-founded in 2018 in Foster City, California, by SawTeen See and Leslie E. Robertson, designing and peer-reviewing structures rather than constructing them.