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

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.

➨ Post your comment / Share knowledge