The FREE Cybersecurity Glossary by Thor Pedersen!

Time multiplexing: A technique in which multiple signals or data streams share the same transmission medium by allocating different time intervals to each signal. This method is widely used in digital and analog communication to efficiently transmit multiple signals over a single channel, ensuring optimal resource utilization and maintaining signal integrity.

Time-of-Check to Time-of-Use (TOCTOU) Attack: A security exploit that takes advantage of the timing window between checking a condition (like a file's attributes) and using it (opening the file). Attackers exploit this window to manipulate conditions and gain unauthorized access or perform illicit actions, challenging systems to ensure a consistent state between verification and action.

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.