How to Use Risk Priority Number (RPN)

𝐃𝐞𝐜𝐨𝐝𝐢𝐧𝐠 𝐑𝐢𝐬𝐤 𝐏𝐫𝐢𝐨𝐫𝐢𝐭𝐲 𝐍𝐮𝐦𝐛𝐞𝐫 (𝐑𝐏𝐍) 𝐟𝐨𝐫 𝐒𝐦𝐚𝐫𝐭𝐞𝐫 𝐌𝐢𝐭𝐢𝐠𝐚𝐭𝐢𝐨𝐧 : 𝘈 𝘚𝘵𝘳𝘢𝘵𝘦𝘨𝘪𝘤 𝘈𝘱𝘱𝘳𝘰𝘢𝘤𝘩 𝘵𝘰 𝘙𝘪𝘴𝘬 𝘔𝘢𝘯𝘢𝘨𝘦𝘮𝘦𝘯𝘵

One of the most powerful tools in risk management is the 𝐑𝐢𝐬𝐤 𝐏𝐫𝐢𝐨𝐫𝐢𝐭𝐲 𝐍𝐮𝐦𝐛𝐞𝐫 (RPN). RPN is a numerical assessment used in 𝐅𝐚𝐢𝐥𝐮𝐫𝐞 𝐌𝐨𝐝𝐞𝐬 𝐚𝐧𝐝 𝐄𝐟𝐟𝐞𝐜𝐭𝐬 𝐀𝐧𝐚𝐥𝐲𝐬𝐢𝐬 (FMEA) to prioritize potential failure modes by multiplying Severity (Impact), Occurrence (Likelihood), and Detectability ratings, with higher RPNs indicating greater risk:

𝐈𝐦𝐩𝐚𝐜𝐭 (𝐈): How severe is the consequence?
𝐋𝐢𝐤𝐞𝐥𝐢𝐡𝐨𝐨𝐝 (𝐋): How often is it likely to occur?
𝐃𝐞𝐭𝐞𝐜𝐭𝐚𝐛𝐢𝐥𝐢𝐭𝐲 (𝐃): How easily can we detect it before it happens?

𝐑𝐏𝐍 = Impact × Likelihood × Detectability

Knowing RPN helps in making 𝐝𝐚𝐭𝐚-𝐝𝐫𝐢𝐯𝐞𝐧 𝐝𝐞𝐜𝐢𝐬𝐢𝐨𝐧𝐬 that deliver real #ROI.

𝐑𝐎𝐈 = (Benefit - Cost) / Cost × 100
Where:
𝐁𝐞𝐧𝐞𝐟𝐢𝐭: {(Initial RPN - New RPN) × Cost of Risk}/ Initial RPN
𝐂𝐨𝐬𝐭: Investment in risk mitigation measures

𝘓𝘦𝘵’𝘴 𝘵𝘢𝘬𝘦 𝘢 𝘳𝘦𝘢𝘭-𝘸𝘰𝘳𝘭𝘥 𝘦𝘹𝘢𝘮𝘱𝘭𝘦 𝘧𝘳𝘰𝘮 𝘢 𝘋𝘢𝘵𝘢 𝘊𝘦𝘯𝘵𝘳𝘦

𝐓𝐡𝐞 𝐑𝐢𝐬𝐤: A potential short-circuit in outdated electrical panels could trigger a fire in the data centre, leading to critical downtime and data loss, with an estimated financial impact of INR 25,00,000 annually due to service disruption and emergency recovery.

𝘐𝘯𝘪𝘵𝘪𝘢𝘭 𝘈𝘴𝘴𝘦𝘴𝘴𝘮𝘦𝘯𝘵:

Impact: 5 (Critical)
Likelihood: 3 (Possible)
Detectability: 0.9 (Very poor detection capability)
𝐈𝐧𝐢𝐭𝐢𝐚𝐥 𝐑𝐏𝐍 = 5 × 3 × 0.9 = 13.5

𝐌𝐢𝐭𝐢𝐠𝐚𝐭𝐢𝐨𝐧 (Installation of advanced fire detection system + regular electrical inspections) 𝐜𝐨𝐬𝐭 = INR 3,50,000

𝘙𝘦𝘷𝘪𝘴𝘦𝘥 𝘢𝘴𝘴𝘦𝘴𝘴𝘮𝘦𝘯𝘵:

Impact: 5 (Unchanged)
Likelihood: 1.5 (Unlikely)
Detectability: 0.4 (Good detection capability)
𝐍𝐞𝐰 𝐑𝐏𝐍 = 5 × 1.5 × 0.4 = 3

𝘊𝘢𝘭𝘤𝘶𝘭𝘢𝘵𝘪𝘯𝘨 𝘵𝘩𝘦 𝘉𝘦𝘯𝘦𝘧𝘪𝘵:
Benefit = {(13.5 – 3) × 25,00,000}÷ 13.5 ≈ INR 19,50,000
ROI = {(19,50,000 – 350,000) ÷ 350,000} × 100 ≈ 450%

𝐎𝐮𝐭𝐜𝐨𝐦𝐞: A 450% ROI, dramatically improving resilience, safeguarding critical assets, and minimizing unplanned costs.

With #ProSecure, your risk management is always a smart investment and not just a cost.