Die Anschläge in New York und Washington am 11

Hazard analysis 
Method of identifying and evaluating the consequences of 
possible incidents on infrastructures, facilities and 
installations or the population in order to derive protection 
measures.
Hazard control 
Measures to maintain or restore public safety. 
Hazard control 
authorities 
The authorities responsible for hazard control (police and 
authorities responsible for public order). 
Infrastructures, critical 
Organisations and facilities of great significance for the 
community whose failure or impairment would cause a 
sustained shortage of supplies, significant disruptions of 
public order or other dramatic consequences.
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Definition of cricital infrastructures by the KRITIS working group at the Federal Ministry of the Interior (BMI) of 17.11.2003. 

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Interdependency 
Interactions or mutual influences between different critical 
infrastructures. 
ISO standard 17799 
International standard on information technology security; 
directive on setting up and operating an information 
security management system (ISMS) 
Ordinance on Major 
Incidents 
Ordinance implementing the Seveso II Directive in German 
law; contains obligations for operators of operational areas 
within the meaning of Section 3 (5a) of the Federal 
Immission Control Act, stipulating measures to prevent 
incidents and modes of conduct after incidents have 
occurred. 
Perceived risk 
Risk assessment based largely on personal experience, 
communicated information and intuitive appraisal. 
Protection objective 
Description of a targeted state of affairs. Protection 
objectives are derived from the results of danger analysis 
and risk assessment.