Browse Definitions:

Security

This cyber security glossary explains the meaning of terms about different types of computer security threats as well as words about application security, access control, network intrusion detection, security awareness training and computer forensics.

Application security

Terms related to application security, including procedural definitions for preventing software vulnerabilities and words and phrases about secure code development.

  • cyberwarfare

    Cyberwarfare is computer- or network-based conflict involving politically motivated attacks by a nation-state on another nation-state.

  • ransomware

    Ransomware is a subset of malware in which the data on a victim's computer is locked, typically by encryption, and payment is demanded before the ransomed data is decrypted and access returned to the victim.

  • bug bounty program

    A bug bounty program, also called a vulnerability rewards program (VRP), is a crowdsourcing initiative that rewards individuals for finding errors in software.

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Authentication

Terms related to authentication, including security definitions about passwords and words and phrases about proving identity.

  • digital identity

    A digital identity is the body of information about an individual, organization or electronic device that exists online. Unique identifiers and use patterns make it possible to detect individuals or their devices.

  • password

    A password is an unspaced sequence of characters used to determine that a computer user requesting access to a computer system is really that particular user.

  • rolling code

    Rolling code, also known as hopping code, is an encryption technique commonly used to provide a fresh code for each use of a passive keyless entry (PKE) system.

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Malware

Terms related to malware, including definitions about viruses and Trojans and other words and phrases about malicious software.

  • phishing

    Phishing is a form of fraud in which an attacker masquerades as a reputable entity or person in email or other communication channels.

  • computer exploit

    A computer exploit, or exploit, is an attack on a computer system, especially one that takes advantage of a particular vulnerability the system offers to intruders.

  • insider threat

    Insider threat is a generic term for a threat to an organization's security or data that comes from within.

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Network security

Terms related to network security, including definitions about intrusion prevention and words and phrases about VPNs and firewalls.

  • vulnerability disclosure

    Vulnerability disclosure is the practice of publishing information about a computer security problem, and a type of policy that stipulates guidelines for doing so.

  • smart home

    A smart home is a residence that uses internet-connected devices to enable the remote monitoring and management of appliances and systems, such as lighting and heating.

  • going dark

    Going dark describes a scenario in which communication appears to have ceased, but in reality has just moved from a public communication channel to a private, encrypted channel.

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Security threats and countermeasures

Terms related to security threats, including definitions about anti-virus programs or firewalls and words and phrases about malware, viruses, Trojans and other security attacks.

  • vulnerability disclosure

    Vulnerability disclosure is the practice of publishing information about a computer security problem, and a type of policy that stipulates guidelines for doing so.

  • cyber attribution

    Cyber attribution is the process of tracking, identifying and laying blame on the perpetrator of a cyberattack or other hacking exploit.

  • smart home

    A smart home is a residence that uses internet-connected devices to enable the remote monitoring and management of appliances and systems, such as lighting and heating.

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Spyware

Terms related to spyware, including definitions about malware and words and phrases about online advertising, adware and online privacy.

  • backdoor (computing)

    A backdoor is a means to access a computer system or encrypted data that bypasses the system's customary security mechanisms.

  • ActiveX

    ActiveX is a set of object-oriented programming technologies Microsoft developed for Internet Explorer to facilitate rich media playback.

  • browser hijacker (browser hijacking)

    A browser hijacker is a malware program that modifies web browser settings without the user's permission and redirects the user to websites the user had not intended to visit.

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SearchCompliance

  • internal audit (IA)

    An internal audit (IA) is an organizational initiative to monitor and analyze its own business operations in order to determine ...

  • pure risk (absolute risk)

    Pure risk, also called absolute risk, is a category of threat that is beyond human control and has only one possible outcome if ...

  • risk assessment

    Risk assessment is the identification of hazards that could negatively impact an organization's ability to conduct business.

SearchSecurity

  • phishing

    Phishing is a form of fraud in which an attacker masquerades as a reputable entity or person in email or other communication ...

  • vulnerability disclosure

    Vulnerability disclosure is the practice of publishing information about a computer security problem, and a type of policy that ...

  • incident response

    Incident response is an organized approach to addressing and managing the aftermath of a security breach or cyberattack, also ...

SearchHealthIT

SearchDisasterRecovery

  • business continuity and disaster recovery (BCDR)

    Business continuity and disaster recovery (BCDR) are closely related practices that describe an organization's preparation for ...

  • business continuity plan (BCP)

    A business continuity plan (BCP) is a document that consists of the critical information an organization needs to continue ...

  • call tree

    A call tree -- sometimes referred to as a phone tree -- is a telecommunications chain for notifying specific individuals of an ...

SearchStorage

  • flash memory

    Flash memory, also known as flash storage, is a type of nonvolatile memory that erases data in units called blocks.

  • NAND flash memory

    NAND flash memory is a type of nonvolatile storage technology that does not require power to retain data.

  • NOR flash memory

    NOR flash memory is one of two types of nonvolatile storage technologies.

SearchSolidStateStorage

  • hybrid hard disk drive (HDD)

    A hybrid hard disk drive is an electromechanical spinning hard disk that contains some amount of NAND Flash memory.

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