Lifecycle of assets: The process of managing the entire lifecycle of an IT asset, from procurement to disposal. It is used to optimize the use of assets and reduce the risk of security vulnerabilities. Examples of the lifecycle of assets include asset tracking, software patching, and end-of-life planning.

Lifecycle of cryptography: The process of developing, implementing, and managing cryptographic systems for information security. It involves selecting the appropriate cryptographic algorithms and key sizes, generating and securely storing keys, and regularly updating and retiring cryptographic systems. It is used in various industries to protect sensitive information such as financial transactions, medical records, and government communications.

Li-Fi (Light Fidelity): Li-Fi (Light Fidelity) is a technology for wireless communication that uses light to transmit data at high speeds. Unlike Wi-Fi, which uses radio frequencies, Li-Fi operates through visible light, infrared, or ultraviolet spectrums, providing an additional layer of security as light cannot pass through opaque structures. This makes it useful for high-security environments and areas with electromagnetic interference.

Likelihood: In the context of risk management, likelihood refers to the probability that a given threat will exploit a vulnerability to cause harm to an organization. It is a key component in assessing risk levels and prioritizing security efforts.

Limit check: A security measure that sets a restriction on the amount of data that can be accessed or processed within a specific timeframe. It is used to prevent unauthorized access to sensitive information and minimize the potential impact of security breaches. Examples include restrictions on the number of login attempts and the amount of data transferable in one transaction.

Limited Maintenance: The practice of providing only essential updates and fixes to a product or system, typically one that is nearing the end of its life cycle. During this stage, changes to the product or system are minimized and are usually focused on addressing critical vulnerabilities or significant operational issues. This practice is usually applied in an effort to manage resources effectively while planning for the replacement or retirement of the product or system.