Archives: Glossary Terms

Hacker

Definition of hacker : noun

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Hacking 

The activity of looking for or exploiting weaknesses in a computer system or network, typically illegally or illegitimately. When used to describe a legitimate activity, often qualified as white hat...

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Hacktivist 

A hacker whose motivation is political, religious, or ideological, as opposed to criminal.

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Hadoop

An open-source software framework that supports data-intensive distributed applications. It supports running applications on large clusters of commodity hardware.

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Hard drive

A kind of persistent storage device.

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Hashing 

A procedure that maps an arbitrarily large data item to a fixed-length (usually shorter) string. This string is often used as the original data’s identifying fingerprint.

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Healthcare Insurance Portability Accountability Act 

A U.S. law designed to improve the portability and accountability of health insurance coverage. It has significant effect on data privacy regulation and litigation. Commonly referred to by it’s acronym,...

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Heuristic

A technique used to solve a problem quickly but not optimally, precisely, or completely. Rules of thumb are examples of heuristics.

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Homograph phishing

The use of similar-looking characters in a phishing URL to spoof a legitimate site. Common examples might be the substitution of the numeral zero for the letter “O,” or the...

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Homographic attack

A form of deception that uses visually similar but distinct characters to register a malicious domain so that it might easily be mistaken for a legitimate one. A simple form...

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