Using the following table, calculate the SLE, ARO, and ALE for each threat category listed:
|
XYZ Software Company, major threat categories for new applications development
|
Cost per Incident
|
Frequency of Occurrence
|
SLE
|
ARO
|
ALE
|
|
Programmer mistakes
|
$5,000
|
1 per week
|
5,000
|
52.0
|
$ 260,000
|
|
Loss of intellectual property
|
$75,000
|
1 per year
|
75,000
|
1.0
|
$ 75,000
|
|
Software piracy
|
$500
|
1 per week
|
500
|
52.0
|
$ 26,000
|
|
Theft of information (hacker)
|
$2,500
|
1 per quarter
|
2,500
|
4.0
|
$ 10,000
|
|
Theft of information (employee)
|
$5,000
|
1 per 6 months
|
5,000
|
2.0
|
$ 10,000
|
|
Web defacement
|
$500
|
1 per month
|
500
|
12.0
|
$ 6,000
|
|
Theft of equipment
|
$5,000
|
1 per year
|
5,000
|
1.0
|
$ 5,000
|
|
Virus, worms, Trojan horses
|
$1,500
|
1 per week
|
1,500
|
52.0
|
$ 78,000
|
|
Denial-of-service attacks
|
$2,500
|
1 per quarter
|
2,500
|
4.0
|
$ 10,000
|
|
Earthquake
|
$250,000
|
1 per 20 years
|
250,000
|
0.1
|
$ 12,500
|
|
Flood
|
$250,000
|
1 per 10 years
|
250,000
|
0.1
|
$ 25,000
|
|
Fire
|
$500,000
|
1 per 10 years
|
500,000
|
0.1
|
$ 50,000
|