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  2. Tempest (codename) - Wikipedia

    en.wikipedia.org/wiki/Tempest_(codename)

    TEMPEST (Telecommunications Electronics Materials Protected from Emanating Spurious Transmissions [1]) is a U.S. National Security Agency specification and a NATO certification [2] [3] referring to spying on information systems through leaking emanations, including unintentional radio or electrical signals, sounds, and vibrations.

  3. Red/black concept - Wikipedia

    en.wikipedia.org/wiki/RED/BLACK_concept

    Red/black box. The red/black concept, sometimes called the red–black architecture [1] or red/black engineering, [2] [3] refers to the careful segregation in cryptographic systems of signals that contain sensitive or classified plaintext information (red signals) from those that carry encrypted information, or ciphertext (black signals).

  4. Misuse detection - Wikipedia

    en.wikipedia.org/wiki/Misuse_Detection

    Misuse detection is an approach to detecting computer attacks. In a misuse detection approach, abnormal system behaviour is defined first, and then all other behaviour is defined as normal. It stands against the anomaly detection approach which utilizes the reverse: defining normal system behaviour first and defining all other behaviour as ...

  5. Computer security - Wikipedia

    en.wikipedia.org/wiki/Computer_security

    An example of a physical security measure: a metal lock on the back of a personal computer to prevent hardware tampering. Computer security (also cybersecurity, digital security, or information technology (IT) security) is the protection of computer software, systems and networks from threats that can lead to unauthorized information disclosure, theft or damage to hardware, software, or data ...

  6. Physical unclonable function - Wikipedia

    en.wikipedia.org/wiki/Physical_unclonable_function

    PUFs act as digital uniquely identifying fingerprints [1]. A physical unclonable function (sometimes also called physically-unclonable function, which refers to a weaker security metric than a physical unclonable function [citation needed]), or PUF, is a physical object whose operation cannot be reproduced ("cloned") in physical way (by making another system using the same technology), that ...

  7. Nervous system network models - Wikipedia

    en.wikipedia.org/wiki/Nervous_system_network_models

    Depending on the stimulus received by the dendrites, soma may generate one or more well-separated action potentials or spike train. If the stimulus drives the membrane to a positive potential, it is an excitatory neuron; and if it drives the resting potential further in the negative direction, it is an inhibitory neuron. Figure 1.

  8. AOL Mail

    mail.aol.com

    Get AOL Mail for FREE! Manage your email like never before with travel, photo & document views. Personalize your inbox with themes & tabs. You've Got Mail!

  9. Heartbeat (computing) - Wikipedia

    en.wikipedia.org/wiki/Heartbeat_(computing)

    In computer science, a heartbeat is a periodic signal generated by hardware or software to indicate normal operation or to synchronize other parts of a computer system. [1] [2] Heartbeat mechanism is one of the common techniques in mission critical systems for providing high availability and fault tolerance of network services by detecting the network or systems failures of nodes or daemons ...