Threat is probability that attack specific type & occurs within a given time

Q.  Threat is the probability that can attack a specific type and it also occur within a given time.
- Published on 24 Jul 15

a. Yes
b. No

ANSWER: Yes
 

    Discussion

  • Nirja Shah   -Posted on 23 Oct 15
    - The probability of a threat occurring is shown in a loosely derived table that indicates the probability of an attack from each threat type within a given time frame (eg. once in ten years).

    - This value is commonly referred to as the annualized rate of occurrence (ARO).

    - Many attacks occur much more frequently than every year or two.

    - For example, a successful deliberate act of sabotage or vandalism might occur once every two years, in which case the ARO would be 50 percent (0.50).

    - Other kinds of network attacks can occur multiple times per second.

    - To standardize calculations, you convert the rate to a yearly (annualized) value.

    - This value is expressed as the probability of a threat occurrence.

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