H - Definitions

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  • H

    Heartbleed

    Heartbleed was a vulnerability in some implementations of OpenSSL, an open source cryptographic library.

  • homomorphic encryption

    Homomorphic encryption is the conversion of data into ciphertext that can be analyzed and worked with as if it were still in its original form.

  • honey monkey

    A honey monkey is a virtual computer system that is programmed to lure, detect, identify and neutralize malicious activity on the Internet. The expression, coined by Microsoft, is based on the term honey pot, which refers to a computer system expressly set up to attract and "trap" people who attempt to penetrate other people's computers... (Continued)

  • honeynet

    A honeynet is a network set up with intentional vulnerabilities hosted on a decoy server to attract hackers.

  • hypervisor security

    Hypervisor security is the process of ensuring the hypervisor -- the software that enables virtualization -- is secure throughout its lifecycle.

  • What is a hacker?

    A hacker is an individual who uses computer, networking or other skills to overcome a technical problem.

  • What is a hardware security module?

    A hardware security module (HSM) is a physical device that provides extra security for sensitive data.

  • What is a honeypot? How it protects against cyberattacks

    A honeypot is a network-attached system set up as a decoy to lure cyberattackers and to help organizations detect, deflect and study hacking attempts to gain unauthorized access to IT.

  • What is hacktivism?

    Hacktivism is the act of misusing a computer system or network for a socially or politically motivated reason.

  • What is HMAC (Hash-Based Message Authentication Code)?

    Hash-based message authentication code (HMAC) is a message encryption method that uses a cryptographic key with a hash function.