- Time Of Day Restrictions Constraints placed on a user's access to a system or network based on the time of day. For instance, an organization might limit the hours during which certain users can access specific resources to mitigate the risk of unauthorized access or misuse. This is particularly common in environments that require high levels of security or regulatory compliance.
- Time offset The difference in time between two different time zones or between a specific time zone and Coordinated Universal Time (UTC). In a networking context, a time offset can be used to synchronize clocks on different systems, ensuring that time-stamped events or logs are accurate across an entire network. An accurate time offset is crucial for incident response and forensic activities as it allows the correct sequencing of events that have been logged by different systems.
- Time To Live (TTL) A concept primarily used in networking, where it signifies the lifespan or lifetime of data in a computer or network. Specifically, in IP networking, TTL refers to the maximum number of hops that data packets are allowed to traverse before being discarded, helping to prevent the endless circulation of misdirected packets and potential network clogging.
- Timing attack A form of attack where the attacker learns information about the target system by observing the time it takes for the system to respond to inputs. The analysis of the time required to perform cryptographic operations can potentially reveal sensitive data, such as secret keys, especially in poorly implemented cryptographic systems.
- TOGAF (The Open Group Architecture Framework) A framework that provides a comprehensive approach to the design, planning, implementation, and governance of an enterprise information architecture. It is designed to ensure that the resulting information system is aligned with business needs and is cost-effective, reliable, and scalable. The TOGAF standard includes a set of guiding principles, methods, and a supporting toolset for designing an enterprise architecture.
- Token A digital identity representation that serves as evidence of a transaction, authentication, or permission within a system. Tokens usually contain protected, cryptographically secured data, such as user authentication credentials, which can be used to gain access to network services or carry out certain transactions.
- Token device A physical device that an authorized user of computer services is given to ease authentication. This device can generate and/or store a unique authentication factor, like a secure digital signature or biometric data, such as a fingerprint template, which provides additional proof of identification.
- Tokenization The process of converting sensitive data into a series of random, meaningless characters or tokens. It is used to protect data during transmission and storage. Examples -using tokenization to protect credit card information during online transactions and using tokenization to protect sensitive medical records in a healthcare database.
- Token ringA type of computer network topology where each machine is connected to the network in a closed loop or ring. Each computer or server is connected to the next, creating a circular network path. Data packets travel around the ring, stopping at each node. If the data is not recognized by the node, it is passed along to the next node in the ring.
- Top-down approach to security management A method of security management that involves setting high-level goals and policies and then working down to the implementation of specific security controls. It is commonly used in organizations with hierarchical structures. Examples -a top-down approach to security management in a government agency and a top-down approach to security management in a multinational corporation.
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