The glossary
Cybersecurity Glossary
Learn about Cybrary's impact initiatives where we focus on reducing industry-wide gatekeeping, improving security teams, and making a difference throughout the cybersecurity industry and beyond.
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Standard Access Control Lists (ACLs)
Standard access control lists (ACLs) are essentially a set of commands, grouped together by a number or name that is used to filter traffic entering or leaving an interface. ACLs make packet filtering decisions based on source ip address only.
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Static Host Tables
Static host tables are text files that contain hostname and address mapping.
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Steganalysis
Steganalysis is the study of detecting and defeating the use of steganography. This is analogous to cryptanalysis applied to cryptography.
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Stimulus
Stimulus is network traffic that initiates a connection or solicits a response.
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Software
Software is any computer instructions, data, or programs that can be stored electronically and executed by computer hardware. While running any software, associated data that is stored in the hardware may be dynamically written or modified.
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Symmetric Key
A symmetric key is a cryptographic key that is used in a symmetric cryptographic algorithm.
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Star Property
A star property is a user who is unable to write data to a lower classification level without logging in at that lower classification level when using star property.
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Stealthing
Stealthing is a term that refers to approaches used by malicious code to conceal its presence on the infected system.
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Source Port
A source port is a port that a host uses to connect to a server. It is usually a number greater than or equal to 1024. It is randomly generated and is different each time a connection is established.
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System Security Officer (SSO)
A system security officer (SSO) is an individual responsible for enforcement or administration of the security policy that applies to the system.