Terms that start with H

The term is often defined as an individual who breaks into networks and computer systems. It also describes an individual with vast knowledge of computer programming.

Tools implemented by an administrator to protect their environment. These same tools are taken advantage of by intruders to penetrate those environments

A system that enables communication in both directions, limiting the process to one direction at a time. It requires that a party wait for the transmitting signal to cease before responding to it .

This is identified as a non-spam email. The ham approach is also used to counter unsolicited messages

A pocket-sized electronic unit. The device may include an iPod, cellular phone or GPS unit

Techniques used to secure a system. This is generally done to defend against malicious attacks.

A well defined process for converting data into a relatively smaller value. Various indexes may be applied to represent the term.

Extra data placed in front of a packet. The data is required as part of the underlying protocol to process the packet.

A scanning procedure that searches for behavioral patterns in security threats. Most leading software developers employ the process to address new or unknown threats

The term is short for hexadecimal. It is essentially a numbering system based on 16 digits.

In anti-virus software, this is a process that has a greater probability of being infected. It also refers to a process that has a chance of accessing infected items

a network security attack where an intruder seizes control of the communication process. This attack occurs after a user has attained some type of authentication.

A system put in place to prevent the intrusion of desktop computers and servers. It does this by recognizing patterns of infectious activity.

a parasitic virus written in High Level Language. Instead of using other files to spread the infection, this virus infects by itself.

a computer worm written in High Level Language. Prefix may or may not be used to define this type of worm.

a message authentication code based on a specific hash function. It is used in conjunction with a secret key.

The term typically refers to fraudulent online messages. The messages are often easily spotted by their dramatic content

A web browser-based program that detects client attacks. It is essentially a variation of a client honeypot.

A program used to combat open-port attacks. It does this by logging attempts at exploitation.

It refers to any computer with full two-way access to other computers on the web. A host works together with a network number to establish connections.

An advanced method of protecting a website or network. The system works by protecting each individual node

Refers to the immediate release of software or upgrades to repair current bugs and issues. Hotfixes are very common in Microsoft software and security solutions

a set of codes or symbols inserted into a file. HTML instructs a web browser on how to display a particular page.

A historical method of transferring files over the web. It acts as the request-response protocol between a computer and a server

a set of rules used to describe a secure HTTP connection. It’s purpose is to protect online transactions from intruders.

A device that functions by sharing the information it receives on a single port with other ports. It allows data sent from a single host to be resent to all other hosts connected by the hub.

A virus that infects system sectors and program files. Often called a multipartite virus.