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

Answer rating: 100% (QA)

Solution SLE stands for Single Loss Expectancy ARO stands for Annual Rate of Occurance ALE stands fo... View the full answer