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Glossary of Terms
Accuracy: The number of correct alarms divided by the number of correct alarms plus false alarms; is a parameter for the relative number of correct alarms.
Activity: Anything that can be collected by sensors and that can possibly be related to intrusions, either directly or indirectly.
Active alarm: The generic model includes IPSs that have (optional) active components that can generate automatic reactive control signals.
Attacker: The person, group, organisation, or state that performs and/or is responsible for an attack.
Correct alarm: An intrusion has occurred, and the IPS generated an alarm
Intruder: The person, group, organisation or state responsible for an intrusion. Intrusion A deliberate or accidental unauthorised access to, activity against, and/or activity in, a CIS.
Intrusion Detection: The process of identifying that an intrusion has been attempted, will occur, is occurring, or has occurred.
Intrusion patterns: Specify the features, conditions, arrangements and interrelationships among activity that leads to break-in or other misuse.
Misuse detection: The (type of) intrusion is known and stored beforehand (as a so-called signature). An intrusion is detected when the activity matches the known intrusion signature.
Network activity: The activity present at the network.
Passive alarm: An IPS generates an alarm, which can be a log file message, a pop-up screen, a pager message and so on, or a combination thereof.
Rules: See Intrusion patterns.
Sensors: The generic components of an IPS that collect activity.
Signatures: See Intrusion patterns.
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Page 1 | Page 2 | Page 3 | Page 4 | Page 5 | Page 6 | Page 7 | Page 8 | Page 9 | Page 10 | Page 11 | Page 12 | Glossary | References
Xuhua Ji, September 2007
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