XYZ Software Company Projected Revenues & Frequency of Occurrence Questions answering the 1,2,and 3 questions ,the questions are in the following pictures.

XYZ Software Company Projected Revenues & Frequency of Occurrence Questions answering the 1,2,and 3 questions ,the questions are in the following pictures. Exercises
1. Using the following table, calculate the SLE, ARO, and ALE for each threat category listed.
XYZ Software Company (Asset value: $1,200,000 in projected revenues)
Threat Category
Cost per Incident Frequency of Occurrence
Programmer mistakes
$5,000
1 per week
Loss of intellectual property $75,000
1 per year
Software piracy
$500
1 per week
Theft of information (hacker) $2,500
1 per quarter
Theft of information (employee) $5,000
1 per 6 months
Web defacement
$500
1 per month
Theft of equipment
$5,000
1 per year
Viruses, worms, Trojan horses $1,500
1 per week
Denial-of-service attack
$2,500
1 per quarter
Earthquake
$250,000
1 per 20 years
Flood
$250,000
1 per 10 years
Fire
$500,000
1 per 10 years
2. How did the XYZ Software Company
arrive at the values shown in the table
that is included in Exercise 1? For each
row in the table, describe the process of
determining the cost per incident and
the frequency of occurrence.
3. How could we determine EF if there is
no percentage given? Which method
is easier for determining the SLE: a
percentage of value lost or cost per
incident?
4. Assume a year has passed and XYZ
has improved its security. Using
the following table, calculate the
SLE, ARO, and ALE for each threat
category listed.
XYZ Software Company (Asset value: $1,200,000 in projected revenues)
Cost per Frequency of Cost of
Threat Category Incident Occurrence Controls Type of Control
Programmer mistakes $5,000 1 per month $20,000 Training
Loss of intellectual $75,000 1 per 2 years $15,000 Firewall/IDS
property
Software piracy $500 1 per month $30,000 Firewall/IDS
Theft of information $2,500 1 per 6 months $15,000 Firewall/IDS
(hacker)
(continues)
XYZ Software Company (Asset value: $1,200,000 in projected revenues) (continued)
Cost per Frequency of Cost of
Threat Category Incident Occurrence Controls Type of Control
Theft of information $5,000 1 per year $15,000 Physical security
(employee)
Web defacement $500 1 per quarter $10,000 Firewall
Theft of equipment $5,000 1 per 2 years $15,000 Physical security
Viruses, worms, $1,500 1 per month $15,000 Antivirus
Trojan horses
Denial-of-service $2,500 1 per 6 months $10,000 Firewall
attack
Earthquake
$250,000 1 per 20 years $5,000 Insurance/backups
Flood
$50,000 1 per 10 years $10,000 Insurance/backups
Fire
$100,000 1 per 10 years $10,000 Insurance/backups

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