ISMS_ROSI_Calculator.xlsx

	A	B	C	D	E	F	G	H	I	J
1		ISMS ROSI CALCULATOR
2	Standarity	Incident Type	Description	Single Loss Expectancy (SLE)	Annual Rate of Occurrence (ARO)	Annual Loss Expectancy (ALE)	Mitigation Ratio	Cost of Security Investment	Modified ALE (mALE)	ROSI
3		Data Breach	Unauthorized access to sensitive data	50000	3	150000	0.7	30000	45000	3.5
4		Phishing Attack	Deceptive attempt to obtain sensitive info	10000	12	120000	0.8	20000	24000	4.8
5		Malware Infection	Malicious software affecting systems	15000	5	75000	0.75	25000	18750	2.25
6		Ransomware Attack	Data encrypted and ransom demanded	100000	2	200000	0.9	50000	20000	3.6
7		Insider Threat	Employee misuse of access privileges	25000	4	100000	0.6	35000	40000	1.714285714
8		Denial of Service (DoS)	Disruption of service availability	20000	6	120000	0.85	40000	18000	2.55
9		Lost/Stolen Device	Loss of physical devices with data	5000	10	50000	0.5	10000	25000	2.5
10		Unauthorized Access	Unauthorized access to systems	30000	7	210000	0.65	45000	73500	3.033333333
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