A formatted message describing a circumstance relevant to network security.

Type of program that protects a computer against a virus.

In computer security systems, a chronological record of system resource usage. This includes user login, file access, other various activities, and whether any actual or attempted security violations occurred, legitimate and unauthorized.

A method for confirming a users identify.

Definition of what resources and type of access are permitted.

Secret (undocumented), hard-coded access codes or procedures for accessing information. Some back doors exist in commercially provided software packages; e.g., consistent (canonical) passwords for third-party software accounts and is designed to hide itself inside a target host and allows the user that installed it to access the system without usin [..]

The action of copying (or mirroring) important data to a second location or onto removable media for later retrieval if file/data is lost or destroyed.

Speed at which information can be transferred.

An intrusion into a computer system where unauthorized disclosure, modification or destruction of information may have occurred.

A malicious, criminal hacker who uses tools to decode or guess passwords to break into a computer system.