The FREE Cybersecurity Glossary by Thor Pedersen!

Internet Service Provider (ISP): A company that provides internet access to customers by providing a connection to the internet. It is used by individuals and businesses to connect to the internet and access online resources. Examples include Comcast, Verizon, and AT&T.

Internet Small Computer System Interface (iSCSI): iSCSI is an Internet Protocol-based storage networking standard for linking data storage facilities. It enables the SCSI command to be sent over IP networks and facilitates data transfers over local area networks (LANs), wide area networks (WANs), or the internet. This allows organizations to consolidate storage into data center storage arrays while providing hosts with the illusion of locally attached disks.

Interoperability agreements: Arrangements, often formalized as contracts or technical standards, which ensure different systems or components can work together effectively. These agreements may pertain to data formats, communication protocols, or user authentication mechanisms, among other things. Ensuring interoperability is a key factor in achieving system integration and can reduce potential security risks associated with inconsistent or incompatible system interactions.

Interpreters: Interpreters are software components that execute source code line by line, translating it into machine-executable instructions in real-time rather than compiling the code into machine language beforehand. This allows for immediate program execution but can result in slower performance compared to compiled languages. They are essential for scripting languages like Python, Ruby, and JavaScript.

Interrogation: The act of questioning or interrogating someone to obtain information. It is used in law enforcement, intelligence gathering, and other contexts to obtain information from individuals or groups. Examples include police interrogations of suspects and intelligence agencies interrogating captured enemies. Interrogation in another context can also include inspecting authentication and network logs while investigating a cybersecurity incident.

Interrupt: A signal from a device or software program to the central processing unit (CPU) of a computer, indicating that the device or program needs immediate attention. It is used in computer systems to allow devices and programs to communicate with the CPU and get processing time. Examples of interrupts include keyboard input, mouse movement, and network activity.