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Enhancing Data Security: Cost-Benefit Analysis in Risk Management Strategies

In today's competitive business environment, effective risk management is crucial, especially in sectors handling sensitive client data. This analysis explores the cost-benefit relationship in security investments, emphasizing the importance of tailored approaches rather than a singular method. By utilizing industry reports and historical incidents, organizations can better understand potential losses and justify spending on security measures. Ultimately, security should be viewed not merely as an expense but as a vital investment that can prevent significant financial losses.

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Enhancing Data Security: Cost-Benefit Analysis in Risk Management Strategies

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  1. Real Life Information Security Bringing cost-benefit analysis into risk management

  2. Hewitt Associates • Human Resources Outsourcing • ~25’000 employees worldwide • Highly sensitive clients’ data

  3. HRO Market • Not purely financial • Mostly B2B • Highly competitive • Stay competitive • Stay flexible

  4. Shepherds or policemen? • Very high pressure from business • No „one size fits all” approach • Lessons learnt • Talk to business • Have real arguments • Talk business • Where do all these numbers come from?

  5. From the past Source: DatalossDB.org

  6. From market analytics • ~$100 USD per record • No actual abuse required • „Losing control” is the bad word • How much to spend and where to stop? Source: Ponemon Institute, „2008 Annual Study: Cost of Data Breach”

  7. From others’ fines Source: FSA, 22 July 2009

  8. From Risk Analysis • Risk = Potential Loss * Threat Probability • Potential Loss ~ Asset Cost, Brand Value...

  9. When Risk Analysis makes sense? Control Cost << Asset Cost Source: Flickr (edouаrd)

  10. What makes Control cost? • Roll-out cost • Obvious • Change cost • Not so obvious • Management cost • Not so obvious • End-user usage cost • Largely ignored • Especially if outside Source: Flickr (dаveme)

  11. Potential loss → Control → Real loss

  12. Case studies

  13. Qualified Certificate in ZUS* • ZUS costs • Roll-out = ? • Administration = ? • Taxpayer costs (245’000 QC’s) • 100-140 million PLN – one-time • ~40 million PLN – annual QC renewal • Future costs • Attribute certificates (ZUS & taxpayers) = ? • „e-PUAP trusted profiles” (ZUS) = ? * ZUS = Polish public pensions provider Source: Money.pl, ZUS

  14. Invoicing • What’s the cost of invoicing? • People, paper, printing, postal, processing • Average €1,4 per paper invoice Ultimate solution • Give up VAT  When e-invoicing makes sense? • Electronic invoice TCO << Paper invoice TCO • Theory: €0,4 versus €1,4 • Key word: TCO Sources: EU MEMO/00/85

  15. Denmark OCES & others allowed OCES: Quite simple origin & integrity authentication OCES: Proportional to e-invoicing risks Around 66% of all invoices are e-invoices Poland Only QES & EDI allowed EDI: supermarkets only QES: Not designed for automatic signature QES: More legal that real security Around 5% of companies use e-invoicing E-Invoicing in Europe Sources: EEI 2007, ITST, OECD; GUS 2008

  16. Risk Management in e-banking Source: Bankier.pl report, October 2009 (selected data only)

  17. Laffer’s curve in security Source: Wikipedia

  18. Mayfield’s Paradox Source: ISACA, „Mathematical Proofs of Mayfield's Paradox”, 2001

  19. How to?

  20. Pitfall of „One-size fits all” approach

  21. Source: Willem Duiff, GE (SASMA 2009)

  22. Control questions Before deploying a new solution • Do my controls help, instead of breaking process? • How do my controls help business do its work? Before asking for new funding • What we earned on last project?

  23. Is security a cost? Security is an investment to prevent losses • Spend $100k to prevent losing $1m = 10x benefit • NOT: „Security again spent $100k” • YES: „Security helped save $1M for just $100k”

  24. How FDE saves money • Office break-in • Four laptops stolen • All with full-disk encryption • Cost of incident – zero • Hardware – insurance • Data confidentality – able to prove to client • Data availability – backups & network drives • Where’s ROI of FDE? • No $$$ in fines • No $$ in breach notification • No $? in brand damage

  25. Building a consistent security policy #1 • Should people should take their laptops home? • Isn’t that increasing risk of theft? • Laptop theft • Lose laptop ($) • Lose data ($$$) Source: Flickr (аresnick)

  26. Building a consistent security policy #2 • Laptop at home • Work from home • Disaster recovery, business continuity • Examples: UK snow (2009), London flood (2009), Hemel Hempstead explosion (2005) • Need to prevent the other risks Source: Wikipedia

  27. Building a consistent security policy #3 • End-user message • „Always take your laptop home” • FDE is standard, non-optional proces

  28. Things we learned when talking to bussiness • Avoid „weasel talk” and buzzwords • „Some attacks exist that might pose a significant risk...” Use as much facts and numbers as possible • Do use industry reports • Be careful with vendor reports • „How spam filtering helps preventing global warming” • Filter them through your company’s reality check • Learn from historic incidents in your organisation Perform periodic review of your controls • Make sure at the old threat is still there • Make sure no new threats appeared

  29. Questions? • Questions, comments • PAWEL.KRAWCZYK@HEWITT.COM • http://www.linkedin.com/in/pawelkrawczyk

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